In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Aliphatic and aromatic glucosides from Anoectochilus koshunensis, published in 1993-07-31, which mentions a compound: 58081-05-3, mainly applied to glycoside aliphatic aromatic Anoectochilus, COA of Formula: C4H6O3.
A new simple aliphatic glucoside, 3-(R)-3-β-D-glucopyranosyloxybutanolide (kinsenoside) with its congeners and a heterocyclic aromatic glucoside, β-glucopyranosyl-3-pyridinemethanol (nicoloside) were isolated from whole plants of A. koshunensis. Their structures were elucidated from chem. and spectroscopic evidence.
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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem