(4aR,8aS)-3-methyl-1-(4-piperidyl)-4a,5,6,7,8,8a-hexahydro-4H-quinazolin-2-one 、
4-氧代哌啶-1-羧酸异丙酯 在
propan-2-yl 4-[4-[(4aR,8aS)-3-methyl-2-oxo-4a,5,6,7,8,8a-hexahydro-4H-quinazolin-1-yl]-1-piperidyl]piperidine-1-carboxylate 、 crude product 作用下,
以to give the title compound as white solid (29 mg, 23% over three steps)的产率得到propan-2-yl 4-[4-[(4aR,8aS)-3-methyl-2-oxo-4a,5,6,7,8,8a-hexahydro-4H-quinazolin-1-yl]-1-piperidyl]piperidine-1-carboxylate