(4aR,13bS)-1,13b-dimethoxy-5-methyl-4,4a,5,6,7,13b-hexahydrobenzo[8',9']thiochromeno[2",3",4"-f'g']isochromeno[6,5,4-def]quinoline 在
甲烷磺酸 、
L-蛋氨酸 作用下,
以67%的产率得到(3S,17R)-16-methyl-26-oxa-10-thia-16-azaheptacyclo[11.11.1.13,23.02,11.04,9.017,25.019,24]hexacosa-1(25),2(11),4,6,8,12,19(24),20,22-nonaene-3,22-diol;hydrochloride