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http://nopr.niscpr.res.in/handle/123456789/22461| Title: | Two new terpenoid derivatives from a new soft coral species of the Nephthea genus of the Indian Ocean |
| Authors: | Anjaneyulu, A S R Murthy, M V R Krishna |
| Issue Date: | Jan-2000 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Chemical examination of a new soft coral species of the Nephthea genus of the Indian Ocean furnishes a new sesquiterpenoid and a new diterpenoid along with some sesquiterpenes and steroids. The structure of the new sesquiterpenoid has been established as 1S, 3R, 4S, 5S, 7S-3,4-epoxy guaia-Δ10(12)-ene 3 and that of a new monohydroxy diterpenoid as 4 by a study of their physical and spectral (1H, 13C, 2D NMR, IR, UV and mass) data. Other known compounds isolated are Δ9(15) -africanene 1, 9-aristolene 2, the ubiquitous batyl alcohol 7, two 4α-methylsteroids, 4α-methylcholest-24(28)-en-3β-yl acetate 5 and 4α, 23, 24-trimethylcholest-22-ene-3β-yl acetate 6 two polyhydroxy steroids, 3β, 7β, 19-trihydroxyergosta-5, 24 (28)-diene 11 and 24-methylenecholestane-3β, 5α, 6β-triol 12 in addition to three monohydroxysteroids, 24-methylcholesta-7, 25-diene-3β-ol 8, 24-ethylidenecholest-5-en-3β-ol (Δ5-avenasterol, 9) and 24-ethylcholest-5-en - 3β-ol 10. Besides the report of two new terpenoids, this is the first report on the presence of 4α-methyl steroids in a Nephthea species. |
| Page(s): | 42-56 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.39B(01) [January 2000] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 39B(1) 42-56.pdf | 2.08 MB | Adobe PDF | View/Open |
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