(3R,4R,5S)-diethyl 5-[6-(2-benzyloxyethyl)benzo[d][1,3]dioxol-5-yl]-4-formyl-3-methylpyrrolidine-2,2-dicarboxylate 在
甲醇 、 sodium tetrahydroborate 作用下,
以84%的产率得到(3R,4R,5S)-diethyl 5-[6-(2-benzyloxyethyl)benzo[d][1,3]dioxol-5-yl]-4-hydroxymethyl-3-methylpyrrolidine-2,2-dicarboxylate