Stigmastane-3,6-diol

Biol Pharm Bull. 1995 Nov;18(11):1617-9.

Inhibitory effect of some oxygenated stigmastane-type sterols on 12-O-tetradecanoylphorbol-13-acetate-induced inflammation in mice.[Pubmed: 8593493]

METHODS AND RESULTS:
The oxygenated stigmastane-type sterols stigmastane-3 beta, 6 alpha-diol(Stigmastane-3,6-diol), stigmastane-3 beta, 6 beta-diol, 7 alpha-hydroxysitosterol and its diacetyl derivative, 7 beta-hydroxysitosterol and its diacetyl derivative, 7-oxositosterol, 4 beta-hydroxysitosterol, and stigmast-4-ene-3 beta, 6 beta-diol were evaluated with respect to their anti-inflammatory activity against 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation in mice.
CONCLUSIONS:
All of the sterols, with the exception of 7 alpha-hydroxysitosterol and its diacetyl derivative, were found to possess marked inhibitory activity. The 50% inhibitory dose of these compounds for TPA-inflammation (1 microgram) was 0.5--1.0 mg/ear.

Planta Med 2008; 74 - P-101

Chemical Studies of Casearia sylvestris Swartz[Reference: WebLink]

METHODS AND RESULTS:
In the present report, the isolation and structure elucidation of two new highly oxygenated clerodane diterpenes casearins U and V (1 and 2) and two new ent -kauranoid diterpene glycosides sylvestriside A and B (3 and 4) were described from C. sylvestris (see Fig. 1), together with 3 known diterpenes, namely, (−)-hardwickic acid (5), (−)-patagonic acid (6) and ent-3β, 18-dihydroxykaur-16-ene (7), as well as 11 other known compounds, namely, spathulenol (8), 7, 8-dihydrovomifoliol (blumenol B 9), N-methyl-trans-4-hydroxy-L-proline (10), Cinnamic acid (11), Soyacerebroside I (12), methypheophorbides (13), pheophorbide a (14), chlorophyll (15), β-sitosterol (16), Stigmastane-3,6-diol (17), daucosterol (18), β-D-glucopyranoside, (3β)-stigmast-5-en-3-yl, 6-nonadecanoate (19).