Lithium Hydroxide → (R)-1-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-2-(1'-carboxymethyl-4,4'-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(7-methoxy-2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate

Participants

Reaction Steps

A solution of 1 mg (0.04 mmol) LiOH in 1 mL water was added to a solution of 20 mg (0.02 mmol) (R)-1-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-2-(1′-ethoxycarbonyl methyl-4,4′-bipiperidinyl-1-yl)-2-oxo-ethyl 4-(7-methoxy-2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carboxylate in 1 mL THF and the reaction mixture was stirred overnight at RT. To complete the reaction a solution of 1 mg LiOH in 1 mL water was again added and the mixture was stirred for another 3 h at RT. The solvents were eliminated in a nitrogen stream, the residue was taken up in a mixture of acetonitrile and water and the product was subjected to freeze-drying.

Provenance & Evidence