(S)-5-(1-methanesulfonyl-1,2,3,6-tetrahydropyridin-4-yl)-2-methyl-2-piperidin-4-yl-2,3-dihydrofuro[2,3-c]pyridine 、 carbonic acid 4-nitro-phenyl ester (S)-2,2,2-trifluoro-1-methyl-ethyl ester 生成
(S)-4-[(S)-5-(1-methanesulfonyl-1,2,3,6-tetrahydro-pyrid in-4-yl)-2-methyl-2,3-d ihydrofuro[2,3-c]pyridin-2-yl]-piperidine-1-carboxylic acid 2.2.2-trifluoro-1-methyl-ethyl ester