tert-butyl (R,S)-ethyl[(1E)-1-{4-[(2-ethyl-7-{ethyl[(2-methyl-2H-tetrazol-5-yl)methyl]carbamoyl}-indolizin-3-yl)carbonyl]phenyl}-4-methylpent-1-en-3-yl]carbamate 在
palladium 10% on activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以81%的产率得到tert-butyl (R,S)-ethyl[1-{4-[(2-ethyl-7-{ethyl[(2-methyl-2H-tetrazol-5-yl)methyl]carbamoyl}indolizine-3-yl)carbonyl]phenyl}-4-methylpentan-3-yl]carbamate