An analogue of corynoline, trans-11-hydroxy-10b-methyl-cis-4b, 5, 6, 10b, 11, 12-hexahydrochelerythrine, is stereoselectively synthesized from the ψ-cyanide 7 which has been derived from berberine chloride. This synthetic procedure is also connected with α-allo-cryptopine by its transformation to berberine chloride.
反式-11-羟基-10b-甲基-顺式-4b, 5, 6, 10b, 11, 12-六氢赤藓碱是由
氯化
小檗碱衍生的ψ-
氰化物 7 立体选择性合成的一种堇菜碱类似物。这一合成过程也与α-阿洛色
氨酸转化为
氯化
小檗碱有关。