Studies directed towards the asymmetric
β
Kiyoshi Tomioka; Hidemichi Mizuguchi; Kenji Koga
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Article
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1978
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Elsevier Science
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French
β 205 KB
Some biologically potent natural lignans having bis-benzylbutyrolactone skeleton, steganacin (s', podophyllotoxin (z2, (-)-trans-2-(3,4,5\_trimethoxy benzyl)-3-(3,4-methylenedioxybenzyl)butyrolactone (3)', are known to be optically rV active. Interestingly steganacin has the absolute configuration o