How is 1-(1-Benzylhexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)-2,2,2-trifluoroethanone (CAS: 1279822-87-5) typically synthesized?

1-(1-Benzylhexahydropyrrolo[3,4-b]pyrrol-5(1H)-yl)-2,2,2-trifluoroethanone (CAS: 1279822-87-5) is typically synthesized through a multi-step process involving the protection of the trifluoroethanol group, followed by the introduction of the benzyl hexahydropyrrolo[3,4-b]pyrrole moiety. The reaction often uses catalytic amounts of a palladium-based catalyst. The overall yield is around 70-80%, and the reaction is selective towards the desired product.