2-(R)-(3-(R)-Formyl-4-(S)-phenylpyrrolidin-1-yl)-3-(cyclobutyl)propionic acid, benzyl ester → 2-(R)-(3-(S)-(4-(N-((2-Chloro-4-fluorobenzyl)carbonyl)-N-ethylamino)-piperidin-1 yl)methyl-4-(S)-phenyl-pyrrolidin-1-yl)-3-(cyclobutyl)propionic acid

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Reaction Steps

The title compound was prepared from 2-(R)-(3-(R)-formyl-4-(S)-phenyl-pyrrolidin-1-yl)-3-(cyclobutyl)propionic acid, benzyl ester (25 mg, 0.07 mmol, Aldehyde 1) and 4-(N-((2-chloro-4-fluorobenzyl)carbonyl)-N-ethylamino)piperidine trifluoroacetate (41 mg, 0.1 mmol, from Example 14 , Step A) according to the method described in Example 14 , Step B to give 6.0 mg (15%) of the title compound. ESI-MS: 584.3 (M+H); HPLC A: 2.70 min.

Provenance & Evidence