(5R,7S)-1-(3-fluorophenyl)-8-(4-hydroxy-3-isopropoxybenzyl)-7-methyl-1,8-diazaspiro[4.5]dec-3-en-2-one hydrochloride 、
2-甲基联苯-3-甲醛 在
(5R,7S)-1-(3-fluorophenyl)-7-methyl-8-[(2'-methylbiphenyl-3-yl)methyl]-1,8-diazaspiro[4.5]decan-2-one hydrochloride 作用下,
以to provide the free base of 88 as an oil的产率得到(5R,7S)-1-(3-fluorophenyl)-7-methyl-8-[(2'-methylbiphenyl-3-yl)methyl]-1,8-diazaspiro[4.5]decan-2-one hydrochloride