Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Phytochemistry called Aliphatic and aromatic glucosides from Anoectochilus koshunensis, Author is Ito, Aiko; Kasai, Ryoji; Yamasaki, Kazuo; Sugimoto, Hiroyuki, which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Product Details of 58081-05-3.
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