HCID 67302202, compound → HCID 67301693, compound

Participants

Reaction Steps

A solution of 210 mg (9 mmol) LiOH.6H2O in 40 mL water was added at RT to a solution of 3.64 g (5.83 mmol) of (R)-2-(3,4-dibromo-phenyl)-1-ethoxycarbonylethyl 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate in 70 mL THF and the reaction mixture was stirred for 7 h at RT. The mixture was evaporated down i.vac., the residue was taken up in 100 mL water, 1 M HCl was added until an acid reaction was obtained, the precipitate was filtered off and dried in the vacuum drying chamber at 50° C. The product was reacted further without purification.

Provenance & Evidence