HCID 68961886, compound → Racemic (2'S,3S,4'R)-4'-[5-bromo-2-(1-tert-butoxycarbonyl-piperidin-4-yloxy)-phenyl]-6-chloro-2'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Participants

Reaction Steps

In a manner similar to the method described in Example 37d, 1-(3-chloro-phenyl)-3-trimethylsilyoxy-2-aza-1,3-butadiene in example 35d (43 mmol) in was reacted with E/Z-3-[5-bromo-2-(1-tert-butoxycarbonyl-piperidin-4-yloxy)-benzylidene]-6-chloro-2-oxo-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester in example 37c (10.8 g, 17 mmol) in toluene at 140° C. for 5 h to give the title compound as a yellow solid (Yield: 1.5 g).

Provenance & Evidence