CONSTITUENTS OF SINDORA SUMATRANA MIQ .1. ISOLATION AND NMR SPECTRAL-ANALYSIS OF SESQUITERPENES FROM THE DRIED PODS
CONSTITUENTS OF SINDORA SUMATRANA MIQ .1. ISOLATION AND NMR SPECTRAL-ANALYSIS OF SESQUITERPENES FROM THE DRIED PODS
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DOI:
10.1248/cpb.42.138
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发表时间:
1994-01-01
影响因子:
1.7
通讯作者:
SUPRIYATNA, S
中科院分区:
文献类型:
--
作者:
HEYMANN, H;TEZUKA, Y;SUPRIYATNA, S
Investigation of the neutral fraction of the dried pods of Sindora sumatrana MIQ. has resulted in the isolation of three new sesquiterpenoids (2, 6 and 8) together with nine known ones (1, 3, 4, 5, 7, 9, 10, 11a and 12a), of which three (7, 10 and 12a) are reported for the first time from a natural source. One other compound, 4-stigmasten-3-one (13) (together with a sterol mixture; beta-sitosterol, stigmasterol and campesterol) was also obtained. The structures of all the isolated sesquiterpenes were determined bg means of spectroscopic methods, mainly tao-dimensional NMR techniques, and the compounds were found to have the caryophyllane, humulane, clovane and caryolane skeletons. The NMR data of the isolated sesquiterpenes are also discussed.