Polystachyne F, a 5,10-seco-Neoclerodane from Salvia polystachya
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چکیده
منابع مشابه
Salvinicins A and B, new neoclerodane diterpenes from Salvia divinorum.
[reaction: see text] Two new neoclerodane diterpenes, salvinicins A (4) and B (5), were isolated from the dried leaves of Salvia divinorum. The structures of these compounds were elucidated by spectroscopic techniques, including (1)H and (13)C NMR, NOESY, HMQC, and HMBC. The absolute stereochemistry of these compounds was assigned on the basis of single-crystal X-ray crystallographic analysis o...
متن کاملSalvinorins J from Salvia divinorum: mutarotation in the neoclerodane system.
A search for biosynthetic precursors of salvinorin A (1) led to the isolation of a new neoclerodane diterpenoid hemiacetal mixture, salvinorins J (2), from the chloroform extract of Salvia divinorum. A leaf surface extraction method was used on S. divinorum, affording a chlorophyll-free extract containing predominantly neoclerodane diterpenoids, including the new salvinorins J (2) and 14 known ...
متن کاملGuaianolide and seco-Guaianolide from Salvia nubicola (Lamiaceae)
Salvia is one of the famous genera of the family Lamiacea previously called Labiatae comprising about 800 species throughout the world [1]. Most of the members of this genus are known due to their biologically active chemical constituents specifically reported for anti-tumor activity [2]. A number of Salvia species are used in folk medicines. For example, S. cavaleriei is used for the treatment...
متن کاملSalvinorins D-F, new neoclerodane diterpenoids from Salvia divinorum, and an improved method for the isolation of salvinorin A.
Three new neoclerodane diterpenoids, salvinorins D-F (4-6), have been isolated from the leaves of Salvia divinorum. The structures were elucidated by chemical and spectroscopic methods, particularly 1D and 2D NMR. A simplified isolation method using chromatography on activated carbon also gave improved yields of the controlled substance salvinorin A (1) and of salvinorin C (3).
متن کاملDivinatorins A-C, new neoclerodane diterpenoids from the controlled sage Salvia divinorum.
Three new neoclerodane diterpenoids, divinatorins A-C (7-9), have been isolated from the leaves of Salvia divinorum. The compounds were identified by spectroscopic methods as derivatives of the antibiotic (-)-hardwickiic acid (10), which was also isolated, along with four other known terpenoids. Neither the crude extract nor 7-9 displayed antimicrobial activity.
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2006
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.54.1338