聚合甲醛 、
9H-fluoren-9-ylmethyl N-[[(1R,2S,10R,12R,13S)-12-(azanylidyne(113C)methyl)-8,19-dihydroxy-5,7,16,18-tetramethoxy-6,17-dimethyl-11,21-diazapentacyclo[11.7.1.02,11.04,9.015,20]henicosa-4(9),5,7,15(20),16,18-hexaen-10-yl]methyl]carbamate 在
三乙酰氧基硼氢化钠 作用下,
以
乙腈 为溶剂,
生成 9H-fluoren-9-ylmethyl N-[[(1R,2S,10R,12R,13S)-12-(azanylidyne(113C)methyl)-8,19-dihydroxy-5,7,16,18-tetramethoxy-6,17,21-trimethyl-11,21-diazapentacyclo[11.7.1.02,11.04,9.015,20]henicosa-4(9),5,7,15(20),16,18-hexaen-10-yl]methyl]carbamate