(S)-2-((S)-2-((S)-2-((tert-Butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinoline-7-carboxylic acid → (2S,4S)-1-(tert-Butoxycarbonyl)-4-(((S)-2-(tert-butoxycarbonyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)oxy)pyrrolidine-2-carboxylic acid

Participants

Reaction Steps

Following a procedure analogous to that for the synthesis of Compound K of Example 1, (2S,4S)-1-tert-butyl 2-methyl 4-(((S)-2-(tert-butoxycarbonyl)-3-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)oxy)pyrrolidine-1,2-dicarboxylate (66 mg, 0.10 mmol) was converted to the title compound (61 mg, 94%). MS (ESI+) m/z 636.3 (M+H)+.

Provenance & Evidence