82225-47-6Relevant articles and documents
NEO-CLERODANE DITERPENES FROM AJUGA CILIATA VAR. VILLOSIOR
Shimomura, Hiroko,Sashida, Yutaka,Ogawa, Kazunori
, p. 988 - 992 (2007/10/02)
From the aerial parts of Ajuga ciliata var. villosior, nine new neo-clerodane diterpenes have been isolated.The structures of two acetyl derivatives of (12S)-6α, 12,19-trihydroxy-1β--4,18-epoxyneo-clerod-13(14)-en-15,16-olide, three acetyl derivatives of (12S)-1β,6α,19-trihydroxy-12--4,18-epoxyneo-clerod-13(14)-en-15,16-olide, three acetyl derivatives of (12S)-6α,19-dihydroxy-12--4,18-epoxyneo-clerod-13(14)-en-15,16-olide and methyl 6α-hydroxy-4α-methoxycarbonyl-18-norneo-clerod-13(14)-en-15,16-olide were elucidated by spectroscopic methods and chemical correlation.In addition, a known neo-clerodane, ajugarin-IV, was isolated.Keywords: neo-clerodane; Ajuga ciliata var. villosior; bitter principle; diterpene; Labiatae; ajugamarin