Some tips on 78648-27-8

78648-27-8 2-(Pyrrolidin-1-yl)benzoic acid 12707331, apyrrolidine compound, is more and more widely used in various fields.

78648-27-8, 2-(Pyrrolidin-1-yl)benzoic acid is a pyrrolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: A mixture of aromatic acid (1 equiv., 0.2 mmol), Co(OAc)2 (0.1 equiv., 0.02mmol), (D, L)-tyrosine (0.15 equiv., 0.03 mmol) were dissolved in CH3CN (5mL), and stirred at 25 oC, then 1 atm of O2 was bubbled into the system for 10h. After the reaction finished, the solvent was evaporated under vacuum and purified by column chromatography to afford the desired product., 78648-27-8

78648-27-8 2-(Pyrrolidin-1-yl)benzoic acid 12707331, apyrrolidine compound, is more and more widely used in various fields.

Reference£º
Article; Shang, Xiao-Jie; Liu, Zhong-Quan; Tetrahedron Letters; vol. 56; 2; (2015); p. 482 – 484;,
Pyrrolidine – Wikipedia
Pyrrolidine | C4H9N – PubChem

Brief introduction of 104706-47-0

104706-47-0, 104706-47-0 (R)-3-Hydroxypyrrolidine hydrochloride 2759336, apyrrolidine compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.104706-47-0,(R)-3-Hydroxypyrrolidine hydrochloride,as a common compound, the synthetic route is as follows.

Boc2O (1.02 mL, 4.5 mmol) was added to a solution of (R)-3-hydroxylpyrrolidine hydrochloride (R)-2a¡¤HCl (0.50 g, 4.1 mmol) in THF-satd NaHCO3 (1:1, 20 mL), and the reaction mixture was stirred at rt for 1.5 h. EtOAc was added, and the layers were separated. The aqueous layer was extracted three times with EtOAc. The combined organic layer was washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo to give tert-butyl (R)-3-hydoxypyrrolidine-1-carboxylate, which was used for the following reaction without further purification.The above-described tert-butyl (R)-3-hydoxypyrrolidine-1-carboxylate was dissolved in anhydrous DMF (20 mL), to which was added NaH (55% oil suspension, 0.71 g, 16.2 mmol) at 0 C. The ice-cold reaction mixture was stirred for 30 min, and Me2SO4 (0.77 mL, 8.1 mmol) was then added. The reaction mixture was stirred overnight at 50 C before being quenched with water. Hexane-EtOAc (1:1) was added, the layers were separated, and the aqueous layer was extracted three times with hexane-EtOAc (1:1). The combined organic layer was washed two times with brine, dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography (hexane-EtOAc, 2:1) to afford 0.69 g of tert-butyl (R)-3-methoxypyrrolidine-1-carboxylate [85% from (R)-2a¡¤HCl]. A colorless oil, -8.4 (c=0.52, CHCl3). 1H NMR (500 MHz, CDCl3) delta: 1.44 (9H, s), 1.84-2.02 (2H, m), 3.31 (3H, s), 3.34-3.49 (4H, m), 3.91 (1H, brs). 13C NMR (125 MHz, CDCl3) delta: 28.5, 30.0, 31.1, 43.5, 43.9, 50.3, 51.1, 56.5, 79.09, 79.14, 79.9, 154.5, 154.6. IR (CHCl3): 1686, 1416 cm-1. HRMS Calcd for C10H19NNaO3 [(M+Na)+] m/z: 224.1257, found: 224.1248.Under a nitrogen atmosphere, 4 M HCl in EtOAc (1.2 mL) was added to tert-butyl (R)-3-methoxypyrrolidine-1-carboxylate (50 mg, 0.25 mmol) at 0 C. The solution was stirred at rt for 30 min and concentrated in vacuo. The residue was dissolved in MeCN-water (10:1, 2.5 mL). Aqueous NH3 (30% w/w, 35 muL, 0.62 mmol) and 3 (162 mg, 0.62 mmol) were added to the solution at 0 C. The reaction mixture was stirred at rt for 30 min and concentrated in vacuo, and the residue was purified by flash column chromatography (CH2Cl2-MeOH, 15:1?10:1) to give 21 mg of (R)-1d (75%, 99% ee) and 7.1 mg of (R)-4-methoxy-1-pyrroline N-oxide (R)-4d (25%). The optical purity of (R)-1d was determined by Daicel CHIRALPAK AD-3 [hexane-iPrOH, 95:5, 2.0 mL/min; retention times 20.3 (R), 24.6 min (S)].(R)-1d. Pale yellow oil, +113 (c=0.85, CHCl3). 1H NMR (500 MHz, CDCl3) delta: 2.17 (1H, dddd, J=3.5, 5.0, 9.0, 14.5 Hz), 2.48-2.57 (1H, m), 3.35 (3H, s), 3.87 (1H, dddd, J=1.0, 6.5, 9.0, 15.5 Hz), 4.10-4.19 (1H, m), 4.56-4.61 (1H, m), 7.02 (1H, q, J=1.5 Hz). 13C NMR (125 MHz, CDCl3) delta: 27.0, 56.5, 61.4, 80.0, 133.3. IR (CHCl3): 1584, 1269, 1238 cm-1. HRMS Calcd for C5H9NNaO2 [(M+Na)+] m/z: 138.0526, found: 138.0534.(R)-4-Methoxy-1-pyrroline N-oxide [(R)-4d]. A pale yellow oil, -22.5 (c=0.66, CHCl3). 1H NMR (500 MHz, CDCl3) delta: 2.75 (1H, d, J=19.5 Hz), 2.94-3.03 (1H, m), 3.33 (3H, s), 3.94 (1H, d, J=15.0 Hz), 4.08-4.15 (1H, m), 4.19-4.24 (1H, m), 6.84-6.87 (1H, m). 13C NMR (125 MHz, CDCl3) delta: 36.1, 56.5, 67.3, 74.3, 133.1. IR (CHCl3): 1595, 1275, 1238 cm-1. HRMS Calcd for C5H9NNaO2 [(M+Na)+] m/z: 138.0526, found: 138.0533.

104706-47-0, 104706-47-0 (R)-3-Hydroxypyrrolidine hydrochloride 2759336, apyrrolidine compound, is more and more widely used in various fields.

Reference£º
Article; Nemoto, Hiroyuki; Tanimoto, Kouichi; Kanao, Yukiko; Omura, Sohei; Kita, Yasuyuki; Akai, Shuji; Tetrahedron; vol. 68; 36; (2012); p. 7295 – 7301;,
Pyrrolidine – Wikipedia
Pyrrolidine | C4H9N – PubChem

Analyzing the synthesis route of 55750-48-6

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

55750-48-6,55750-48-6, Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

First, in analogy to the synthesis described in Intermediate 75, by coupling of N-(tert-butoxycarbonyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-2-carboxy-1-methoxypropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (Intermediate 26) and (1S,2R)-1-amino-2-phenylcyclopropanecarboxylic acid trifluoroacetate (Intermediate 207) in the presence of O-(7-azabenzotriazol-1-yl)-N,N,N?,N?-tetramethyluronium hexafluorophosphate and subsequent detachment of the Boc protecting group by means of trifluoroacetic acid, the amine compound N-methyl-L-valyl-N-[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[(1S,2R)-1-carboxy-2-phenylcyclopropyl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide was prepared as the trifluoroacetate. [2324] To 22 mg (0.026 mmol) of this compound in 10 ml of methanol were then added 17 mg (0.05 mmol) of 9H-fluoren-9-ylmethyl 6-oxohexyl carbamate (Intermediate 208) and 2.3 mg of acetic acid, and also 11.4 mg (0.12 mmol) of borane-pyridine complex. The reaction mixture was stirred at RT overnight. Then the same amounts of borane-pyridine complex and acetic acid, and also 8 mg of fluoren-9-ylmethyl 6-oxohexyl carbamate, were added once again and the reaction mixture was stirred at RT for a further 24 h. This was followed by concentration under reduced pressure, and the residue was purified by means of preparative HPLC. After concentration of the corresponding fractions, the product was used immediately in the next stage. 33 mg of the still contaminated intermediate were taken up in 5 ml of DMF, and 1 ml of piperidine was added. After stirring at RT for 15 min, the reaction mixture was concentrated and the resulting residue was purified by preparative HPLC. Thus, 11 mg (55% of theory over 2 stages) of the aminocarboxylic acid intermediate were obtained. [2325] HPLC (Method 12): Rt=1.7 min; [2326] LC-MS (Method 11): Rt=0.7 min; MS (ESIpos): m/z=843 (M+H)+. [2327] 6 mg (7.12 mumol) of this intermediate were taken up in 1 ml of dioxane and then admixed with 6.6 mg (42.7 mumol) of methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate and with 5 mul of saturated aqueous sodium hydrogencarbonate solution. The reaction mixture was stirred at RT for 1 h. Then another 3 portions each of 50 mul of the saturated aqueous sodium hydrogencarbonate solution were added and the reaction mixture was stirred at RT for a further 30 min. Then the reaction mixture was acidified to pH 2 with trifluoroacetic acid and subsequently concentrated under reduced pressure. The remaining residue was purified by means of preparative HPLC. After lyophilization from acetonitrile/water, 4 mg (60% of theory) of the title compound were obtained as a foam. [2328] HPLC (Method 12): Rt=1.9 min; [2329] LC-MS (Method 11): Rt=0.88 min; MS (ESIpos): m/z=923 (M+H)+

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Lerchen, Hans-Georg; Hammer, Stefanie; Harrenga, Axel; Kopitz, Charlotte Christine; Nising, Carl Friedrich; Sommer, Anette; Stelte-Luowig, Beatrix; Mahlert, Christoph; Schuhmacher, Joachim; Golfier, Sven; Greven, Simone; Bruder, Sandra; US2015/23989; (2015); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

New learning discoveries about 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

55750-48-6, Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

55750-48-6, 2-([2,2?:6?,2??-terpyridin]-4?-yloxy)ethylamine (3) (290 mg,1.0 mmol) in 40 mL of acetone/water (2/1) was added to a solutionof NaHCO3 (440 mg, 5.3 mmol) and N-methoxycarbonylmaleimide (4)(470mg, 3.0mmol) at 4 C, and the reaction mixturewas stirred for 1 h.The solution was added to water (6 mL) and stirred for 2 h at roomtemperature. The obtained precipitate was collected and washed withwater. The product was recrystallized from acetone/water (4/1).Yield: 220 mg (58%); 1H NMR (400 MHz, CDCl3) delta 8.74 (d, J = 4.8 Hz,2 H), 8.61 (d, J = 8.0 Hz, 2 H), 8.11 (s, 2 H), 7.97 (dd, J = 8.0, 7.5,1.9 Hz, 2 H), 7.44 (dd, J = 7.5, 4.8 Hz, 2 H), 6.75 (s, 2 H), 4.50 (t, J =5.6 Hz, 2 H), 4.05 (t, J = 5.6 Hz, 2 H). 13C NMR (100 MHz, CDCl3) delta170.34, 166.57, 156.78, 155.53, 148.71, 137.21, 134.26, 124.01, 121.54,107.59, 64.86, 36.94.

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

Reference£º
Article; Himiyama, Tomoki; Sauer, Daniel F.; Onoda, Akira; Spaniol, Thomas P.; Okuda, Jun; Hayashi, Takashi; Journal of Inorganic Biochemistry; vol. 158; (2016); p. 55 – 61;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

Downstream synthetic route of 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.55750-48-6,Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate,as a common compound, the synthetic route is as follows.

55750-48-6, EXAMPLE 9; Method for Preparing a Water-soluble Biotinylation Regent that is Reactive with Sulfhydryls or Amines Biotin-4,7,10-trioxa-1,13-tridecanediamine (1.0 g, 2.2 mmol) was dissolved in 12 mL of saturated aqueous sodium bicarbonate and cooled with ice water. N-methoxycarbonyl-maleimide (4.5 mmol, 0.696 g) was added and the reaction stirred at 0 C. for 10 minutes. A 50 mL quantity of water was added to the reaction and the stirring was continued at room temperature for an additional 15 minutes. The solution was extracted with (4¡Á100 mL) chloroform. The combined chloroform extracts were washed with (2¡Á50 mL) water, dried over anhydrous sodium sulfate, and chloroform removed under vacuum. The product was triturated in 100 mL ether and filtered. The isolated product was dried under vacuum to yield 0.57 g (49%) of the compound 18 as a colorless solid; mp=112-114 C.; 1H NMR (MeOH, delta): 1.46 (m, 2H), 1.6-1.8 (m, 9H), 2.2 (t, 2H), 2.7 (d, 1H), 2.9 (dd, 1H), 3.2-3.3 (m, 4H), 3.5-3.6 (m, 15H), 4.3 (m, 1H), 4.5 (m, 1H), 6.8 (s, 2H); IR (KBr, cm-1): 3280, 2910, 2850, 1760, 1690, 1640, 1110, 940; HRMS: calculated for C24H38N4O7S (M+H) is 527.2539, found 527.2526.

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

Reference£º
Patent; Wilbur, D. Scott; Pathare, Pradip M.; Hamlin, Donald K.; Wan, Feng; US2006/228325; (2006); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

Brief introduction of 55750-48-6

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.55750-48-6,Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate,as a common compound, the synthetic route is as follows.

55750-48-6, Using a 40 mL vial, a solution of prop-2-yn-1 -amine (500 mg, 9.08 mmol) in 15 mL of sat. aqueous NaHC03 was cooled to 0 C with ice bath and then methyl 2,5-dioxo-2,5-dihydro-1 H- pyrrole-1 -carboxylate (1 .27 g, 8.17 mmol) was added. The reaction mixture was then stirred at the same temperature for 4 h and then extracted wtih 50 mL of CH2CI2 three times. The combined organic layers were dried over Na2S04, concentrated, purified by ISCO (24 g, silica gel) and concentrated to give 1 -(prop-2-yn-1 -yl)-1 H-pyrrole-2,5-dione (i-5). 1 H-NMR (CDCI3, 400 MHz) delta 6.76 (s, 2H), 4.29 (d, 2H, J = 2.8 Hz), 2.21 (t, 1 H, J=2.8 Hz).

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; NOVARTIS AG; BURGER, Matthew T.; JIN, Yunho; UNO, Tetsuo; (202 pag.)WO2017/191579; (2017); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

Downstream synthetic route of 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.55750-48-6,Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate,as a common compound, the synthetic route is as follows.

55750-48-6, Step 1t-Butyl (2-(2-aminoethoxy)ethyl)carbamate (204 mg, 1 mmol) was dissolved in saturated aq. NaHCO3 (1 0 mL). The solution was cooled to 0 C. Methyl-2,5-dioxo-2,5- dihydro-1 H-pyrrole-1 -carboxylate (155 mg, 1.0 mmol) was then added. The reaction was stirred for 1 .5 h at 0 C. The pH was adjusted to 1 -2 with 2M HCl, and the mixture was extracted with EtOAc (3 X 20 mL). The combined organic phases was washed with brine, dried over MgSO4, filtered, and concentrated. The residue was purified by ISCO using a 0-4% gradient of MeOH in DCM to obtain tert-butyl (2-(2-(2,5-dioxo-2,5-dihydro-1 H-pyrrol- 1 -yl)ethoxy)ethyl)carbamate. 1H NMR (400 MHz, CD3OD): 6.82 (s, 2H), 3.68 (t, J = 5.4 Hz, 2H), 3.59 (t, J = 5.4 Hz, 2H), 3.46 (t, J = 5.6 Hz, 2H), 3.1 8-3.14 (m, 2H), 1.43 (s, 9H). MS m/z 1 85.1 (M+1 -Boc). Retention time 0.918 min.

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

Reference£º
Patent; NOVARTIS AG; GEIERSTANGER, Bernhard; GRUNEWALD, Jan; OU, Weijia; PAN, Shifeng; UNO, Tetsuo; WAN, Yongqin; WANG, Xing; WO2015/189791; (2015); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

New learning discoveries about 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

55750-48-6, Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

64 mg (70 mumol) of N-(6-aminohexyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-{[(1S,2R)-1-(1,2-oxazinan-2-ylcarbonyl)-2-phenylcyclopropyl]amino}-3-oxopropyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (Intermediate 97) were taken up in 3 ml of 1:1 dioxane/water, then adjusted to pH 9 with 4 ml of saturated sodium hydrogencarbonate solution and subsequently admixed with 16.3 mg (110 mumol) of methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate. The reaction mixture was stirred at RT for 1 h and then concentrated under reduced pressure. Then another 8 mg (55 mumol) of methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate were added, and the reaction mixture was adjusted again to pH 9 and stirred at RT for a further hour. This was followed by concentration and purification of the remaining residue by means of preparative HPLC. At first, 31 mg of an as yet uncyclized intermediate were obtained. 27 mg of this intermediate were taken up again in 2 ml of 1:1 dioxane/water and then admixed with 250 mul of saturated sodium hydrogencarbonate solution. After stirring at RT for 2 hours, the reaction mixture was concentrated and the residue was purified by means of preparative HPLC. After lyophilization, 20 mg (29% of theory) of the title compound were obtained. [1949] HPLC (Method 5): Rt=1.96 min; [1950] LC-MS (Method 1): Rt=0.97 min; MS (ESIpos): m/z=992 (M+H)+, 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

Reference£º
Patent; Lerchen, Hans-Georg; Hammer, Stefanie; Harrenga, Axel; Kopitz, Charlotte Christine; Nising, Carl Friedrich; Sommer, Anette; Stelte-Luowig, Beatrix; Mahlert, Christoph; Schuhmacher, Joachim; Golfier, Sven; Greven, Simone; Bruder, Sandra; US2015/23989; (2015); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

Downstream synthetic route of 55750-48-6

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

55750-48-6,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.55750-48-6,Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate,as a common compound, the synthetic route is as follows.

[4321] 22.5 mg (20 f.tmol) oflntermediate 101 were takenup in 2 ml ofl : 1 dioxane/water and then admixed with 5. 6 mg(40 f.tmol) of methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate and with 0.25 ml of saturated sodium hydrogencarbonatesolution. The reaction mixture was stirred at RT for30 min. Then another 0.25 ml of the saturated sodium hydrogencarbonatesolution were added, and the reaction mixturewas stirred at RT for another 15 min and then concentrated invacuo. The remaining residue was purified by means of preparativeHPLC.Afterlyophilization, 12.8mg(50%oftheory)of the title compound were obtained as a colourless foam.[4322] HPLC (Method 5): R,=l.9 min;[4323] LC-MS (Method 1): R,=0.95 min; MS (ESipos):rnz=1019 (M+Hr.

As the paragraph descriping shows that 55750-48-6 is playing an increasingly important role.

Reference£º
Patent; SEATTLE GENETICS, INC.; LERCHEN, Hans-Georg; LINDEN, Lars; SHEIKH, Sherif El; WILLUDA, Joerg; KOPITZ, Charlotte C.; SCHUHMACHER, Joachim; GREVEN, Simone; MAHLERT, Christoph; STELTE-LUDWIG, Beatrix; GOLFIER, Sven; BEIER, Rudolf; HEISLER, Iring; HARRENGA, Axel; THIERAUCH, Karl-Heinz; BRUDER, Sandra; PETRUL, Heike; JOeRISSEN, Hannah; BORKOWSKI, Sandra; US2015/246136; (2015); A1;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

Analyzing the synthesis route of 55750-48-6

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

55750-48-6, Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,55750-48-6

0-(P-D-glucopyranos-1 -yl)decyl-maleimide (38) N-(methoxycarbonyl) maleimide(37) (0.014 g, 0.09 mmol) was added at RT to a stirring solution of (10-Aminodecyl) p-D-glucopyranoside(0.015 g, 0.04 mmol) in dioxane (0.75 ml_) and sat. NaHC03 (aq) (1.5 ml_). The reaction was stirred for 1 hr after which the reaction was quenched with EtOAc (10 ml_) and water (10 mL). The organic phase was separated out and the aq. phase extracted with EtOAc (3 x 10 mL). The organic layers were combined, dried, filtered and the solvent evaporated under vacuum. The residue was adsorbed onto silica and purified with column chromatography (CH2CI2: MeOH 9: 1 ). The title compound was obtained as a clear oil (0.01 1 g, 60 %) Rf = 0.15 (CH2CI2: MeOH 9:1 ) deltaEta (CD3OD, 300 MHz): 6.79 (2H, s, 374′), 4.24 (1 H, d, J = 7.5 Hz, H-1 “), 3.93-3.84 (2H, m, H-6″a/H-10a), 3.69-3.64 (1 H, m, H-6″b), 3.57-3.50 (1 H, dt, J = 6.6, 9.6 Hz, H-10b), 3.48 (2H, t, J = 6.9 Hz, H-1 ), 3.38-3.22 (3H, m, H-3’74’75”), 3.19-3.13 (1 H, m, H-2″), 1.64-1 .54 (4H, m, H-2/9), 1.42-1 .28 (12H, m, AlkCHz). 5C (CD3OD, 100 MHz): 172.6 (C-275′), 135.3 (C-374′), 104.4 (C-1 “), 78.2 (C-3″), 77.9 (C-2″), 75.1 (C-5″), 71 .7 (C-10), 70.9 (C-4″), 62.8 (C-6”), 38.5 (C-1 ), 30.8 (C-2), 30.5 (x3), 30.1 , 29.4, 27.7, 27.0 (CH2Alk)

The synthetic route of 55750-48-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; THE SOUTH AFRICAN NUCLEAR ENERGY CORPORATION LIMITED; UNIVERSITY OF CAPE TOWN; DRIVER, Cathryn Helena Stanford; ZEEVAART, Jan Rijn; PARKER, Mohamed Iqbal; HUNTER, Roger; (67 pag.)WO2016/46793; (2016); A2;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem