反应详情

(by reaction of (S)-2-((S)-4-phenyl-3-((4-biphenylyl)methyl)-4-methyl-2,5-dioxoimidazolidin-1-yl)-2-(2-methylpropyl)acetic acid (obtainable by reaction of 169.2 with 4-phenylbenzyl bromide analogously to the synthesis of 169.3 and subsequent reactions analogously to the preparation of 169.5) with tert-butyl (S)-3-amino-3-(3,4-methylenedioxyphenyl)propionate and subsequent cleavage of the tert-butyl ester with trifluoroacetic acid)

1. customanalogously to the synthesis of 169.3 and subsequent reactions