NEOCLERODANE DITERPENOIDS FROM SCUTELLARIA-ORIENTALIS SUBSP PINNATIFIDA

Citation
Py. Malakov et Gy. Papanov, NEOCLERODANE DITERPENOIDS FROM SCUTELLARIA-ORIENTALIS SUBSP PINNATIFIDA, Phytochemistry, 43(1), 1996, pp. 173-178
Citations number
18
Categorie Soggetti
Plant Sciences
Journal title
ISSN journal
00319422
Volume
43
Issue
1
Year of publication
1996
Pages
173 - 178
Database
ISI
SICI code
0031-9422(1996)43:1<173:NDFSSP>2.0.ZU;2-U
Abstract
Three new neo-clerodane derivatives, scutorientalins A-C, have been is olated from an acetone extract of the aerial parts of Scutellaria orie ntalis subsp. pinnatifida. The structures of the new diterpenoids, 19- acetoxy-6 alpha-isobutyroyloxy-4 alpha,18:8 beta,13S-diepoxy-neo-clero dan-15,16-olide, (scutorientalin A); (11S)-11-acetoxy-8 beta, 19-dihyd roxy-6 alpha-isobutyroyloxy-4 alpha, 18 epoxy-neo-cleroda-13-en-15,16- olide (scutorientalin B) and (11R)-11-hydroxy-19-acetoxy-6 alpha-isobu tyroyloxy-4 alpha,18:8 beta,13S-diepoxy-neo-clerodan-15,16-olide (scut orientalin C), were established by chemical and spectroscopic means an d by comparison with closely related compounds. Copyright (C) 1996 Els evier Science Ltd