反应详情

Benzyl tert-butyl tetrahydropyrrolo[3,4-c]pyrrole-2,5(1H, 3H)-dicarboxylate (40 mmol; from step (a) above) was dissolved in ethyl acetate. Ethyl acetate saturated with HCl (g) (500 mL) was added at 0° C. and stirred while reaching room temperature. The solvent was evaporated and the product was dissolved in CH3CN. K2CO3 (4 eq.) and water (2 mL) were added. The mixture was stirred for 2 h, before being filtered and evaporated to give 8 g (82%) of the subtitle compound which was used without further purification in the next step.

1. customwhile reaching room temperature
2. customThe solvent was evaporated
3. dissolutionthe product was dissolved in CH3CN
4. stirringThe mixture was stirred for 2 h
5. filtrationbefore being filtered
6. customevaporated