Clavicipitic acid was obtained by Robbers and Floss' from submerged cultures of Claviceps strain SD-58, to which ill-ethionine had been added to inhibit F-methylation in clavine alkaloid biosynthesis. Cn mass spectral, n.m.r., and biosynthetic evidence they proposed the structure (I). ## Me We h
A revised structure for hermonionic acid
โ Scribed by A.A.Leslie Gunatilaka; Subramaniam Sotheeswaran; H.T.Badra Sriyani; Eric S. Waight
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 210 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
Hermonionic acid and its decarboxylated product have been lsolatcd from Garcinia quaesita. 13 C IWR spectral and chemical evidence indicate that hem?rionic acid is 2-O-E-(3 -methylbut-2-enyl)-3-methoxy-4-hydroxy-5-(3,7-dlmethyl.octa-?,6-dieny~ -4-methoxy-5-(3-methylbut-2-enyl -G-hydroxybenzolc acid. The previously assigned dienone structure for this acid 1s incorrect.
๐ SIMILAR VOLUMES
The structure of cycloprodigiosin has been revised from 2 to 4 in which the side -chain is cyclised to form a six-membered ring.
The structure of plumbazeylanone has been revised, by X-ray crystallography, to 1,2,3,4-tetrahydro-5-hydroxy-l,4-diketo-2-methyl-2,3-di(5'-hydroxy-2'-methyl-l,4-naphthoquinon-3'-yl)naphthalene.