- Asymmetric syntheses of the macrocyclic spermine alkaloids (-)-(S)-protoverbine, (-)-(S)-buchnerine, and their naturally occurring congenial alkaloids
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Asymmetric syntheses of the following 17-membered macrocyclic spermine alkaloids are presented: (-)-(S)-protoverbine (= (8S)-8-phenyl-1,5,9,13-tetraazacycloheptadecane-6-one: 1), (+)-(S)-protomethine (=(2S)-2-phenyl-1,5,9,14-tetraazabicyclo[12.3.1]octadec
- Drandarov, Konstantin,Guggisberg, Armin,Hesse, Manfred
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p. 979 - 989
(2007/10/03)
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- Verbacine and Verballocine, Novel Macrocyclic Spermine Alkaloids from Verbascum pseudonobile Stoj. et Stef. (Scrophulariaceae)
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The isolation and structural elucidation of the novel 17-membered lactam alkaloids verbacine (1) and verballocine (2) containing spermine, E- (or Z-)cinnamoyl and phenylpropionyl precursory units, is reported.Evidence for the artificial origin of the prev
- Drandarov, Konstantin
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p. 617 - 620
(2007/10/02)
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