ethyl 1-[(3S)-3-propan-2-yl-3-[3-(trifluoromethyl)-7,8-dihydro-5H-1,6-naphthyridine-6-carbonyl]cyclopentyl]piperidine-3-carboxylate 生成 ethyl 1-[(1R,3S)-3-propan-2-yl-3-[3-(trifluoromethyl)-7,8-dihydro-5H-1,6-naphthyridine-6-carbonyl]cyclopentyl]piperidine-3-carboxylate 、 ethyl 1-[(1S,3S)-3-propan-2-yl-3-[3-(trifluoromethyl)-7,8-dihydro-5H-1,6-naphthyridine-6-carbonyl]cyclopentyl]piperidine-3-carboxylate