(1R*,3S*,4R*)-4-tert-Butyldiphenylsilyloxy-6,7-dimethoxy-1-methyl-3-phenyl-1,2,3,4-tetrahydroisoquinoline

Abstract

The crystal structure of the title compound, C 34 H 39 NO 3 Si, shows that the heterocyclic fragment of the molecule exhibits a half-chair conformation. The structural data also confirm the earlier configurational assignments and show that the solid-state conformation has the methyl and phenyl substituents in pseudoequatorial and equatorial positions, respectively, and that the group linked to C2 is in a trans configuration with respect to the phenyl substituent.