3-(Naphthalen-1-ylcarbamoyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 1-benzyl ester 4-tert-butyl ester → 6-(Naphthalen-1-ylcarbamoyl)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carboxylic acid tert-butyl ester

Participants

Reaction Steps

A solution of 53 (490 mg, 0.95 mmol) in 1:1 MeOH/EtOAc (4 mL) was treated with Pd/C (5% wet, ca. 100 mg) and placed under H2 (50 psi) using a Parr apparatus. After 1.5 h, the reaction mixture was filtered through syringe filter disc (Acrodisc-PSF-0.45 μM) and rinsed with MeOH. The filtrate was concentrated to afford crude 54 (360 mg) which was used without further purification. Mass spectrum, m/z [382.2] (M+H)+.

Provenance & Evidence