4-(Piperazin-1-yl)-1lambda6-thiane-1,1-dione dihydrochloride → {(4S,5R)-4,5-Bis-(4-chloro-phenyl)-2-[2-ethoxy-4-(1-hydroxy-1-methyl-ethyl)-phenyl]-4,5-dimethyl-4,5-dihydro-imidazol-1-yl}-[4-(1,1-dioxo-tetrahydro-2H-thiopyran-4-yl)-piperazin-1-yl]-methanone

Participants

Reaction Steps

In a manner analogous to the method described in example 5, rac-(4S*,5R*)-4,5-bis-(4-chloro-phenyl)-2-[2-ethoxy-4-(1-hydroxy-1-methyl-ethyl)-phenyl]-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride was reacted with 1-(1,1-dioxo-tetrahydro-2H-thiopyran-4-yl)-piperazine dihydrochloride (example 22) to give the title compound as a racemic mixture. The enantiomers were then separated by supercritical fluid chromatography (Berger Instrument Multi-Gram II, Daicel ChiralPak OD-H 3×25 cm, 35° C. at 100 bar, eluting with 35% of 1:1 ethanol/acetonitrile in carbon dioxide). HR-MS (ES, m/z) calculated for C38H47N4O5SCl2 [(M+H)+] 741.2639, observed 741.2637.

Provenance & Evidence