Journal of the Chemical Society. Perkin transactions I p. 2830 - 2834 (1981)
Update date:2022-08-03
Topics:
Kametani, Tetsuji
Takagi, Nanami
Toyota, Masahiro
Honda, Toshio
Fukumoto, Keiichiro
The protoberberine alkaloid, xylopinine (12), has been synthesised in an optically active form, a key reaction being the photochemical cyclisation of optically active 1,2,3,4-tetrahydro-6,7-dimethoxy-3-methoxycarbonyl-1-methylene-2-veratroylisoquinoline (4) with 1,3-asymmetric induction.
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