反应详情

To a suspension of the product of Example 31A (5.4 g, 20.2 mmol) in methanol (200 mL) was added 10% palladium on carbon (540 mg) and the mixture was stirred under hydrogen for 4 hours. The catalyst was filtered off and the filtrate was concentrated to give the title compound. MS: 238 (M+H+).

1. filtrationThe catalyst was filtered off
2. concentrationthe filtrate was concentrated