1H-Indole-3 acetonitrile glycosides from Capparis spinosa fruits
摘要:
Two new glucose-containing 1H-indole-3-acetonitrile compounds, capparilosides A and B, were isolated from mature fruits of Capparis spinosa. On the basis of spectral and chemical evidence, they were shown to be 1H-indole-3-acetonitrile 4-O-beta-glucopyranoside and 1H-indole-3-acetonitrile 4-O-beta-(6'-O-beta-glucopyranosyl)-glucopyranoside respectively. (C) 1999 Elsevier Science Ltd. All rights reserved.
The First and Simple Total Synthesis of Cappariloside A
摘要:
A lithium hydroxide promoted simple glycosylation of 4-hydroxyindole-3-acetonitrile with 2,3,4, 6-tetra-O-acetyl-alpha-D-glucopyranosyl bromide was developed. Utilizing the method, the first and five steps total synthesis of cappariloside A was achieved from indole-3-carbaldehyde in 41% overall yield.