Format:
Online-Ressource
ISSN:
2192-6549
Content:
Abstract: Ceanothic acid (1) is the major triterpene isolated from Parliurus ramosissitnus (Rhamnaceae) which possesses three methyl groups corresponding to the 4,4,14α‐trimethyl groups in lanosterol (5). Microbial transformation of 1 and its 3‐dehydro‐2,28‐dimethyl ester derivative (3) with Mycobacterium sp. (NRRL B‐3805) resulted in the methylation of the carboxylic functions and C‐1 epimerization, respectively. Although this work indicates that 1 is not a suitable substrate for 4,4,14α‐tridemethylation, esterification of the carboxylic function and the C‐1 epimerization reaction in ceanothic acid and its derivative is the first observation with this microorganism.
In:
volume:40
In:
number:2
In:
year:2013
In:
pages:213-216
In:
extent:4
In:
Zhongguo-Huaxuehui 〈Taiwan〉, Journal of the Chinese Chemical Society, Malden, Mass. : Wiley-Blackwell, 1954-, 40, Heft 2 (2013), 213-216 (gesamt 4), 2192-6549
Language:
English
DOI:
10.1002/jccs.199300032
URN:
urn:nbn:de:101:1-2024012608120815119008
URL:
https://doi.org/10.1002/jccs.199300032
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2024012608120815119008
URL:
https://d-nb.info/1317307542/34
URL:
https://doi.org/10.1002/jccs.199300032
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