3,3-dibromoacrylaldehyde 、
(1R,2S,4R,5R,8R,9S,11R)-9-formyl-5-methyl-2-[[(2R,5R)-5-methylmorpholin-2-yl]oxymethyl]-13-propan-2-yltetracyclo[7.4.0.02,11.04,8]tridec-12-ene-1-carboxylic acid 在
sodium cyanoborohydride 作用下,
以
乙腈 为溶剂,
生成 (1R,2S,4R,5R,8R,9S,11R)-2-[[(2R,5R)-4-(3,3-difluoroprop-2-enyl)-5-methylmorpholin-2-yl]oxymethyl]-9-formyl-5-methyl-13-propan-2-yltetracyclo[7.4.0.02,11.04,8]tridec-12-ene-1-carboxylic acid