(3S,4R)-4-benzyloxycarbonylamino-piperidine-3-carboxylic acid ethyl ester → (3S,4R)-4-benzyloxycarbonylamino-1-[2-(7-methoxy-quinoxalin-2-ylsulfanyl)-ethyl]-piperidine-3-carboxylic acid ethyl ester

Participants

Reaction Steps

The title compound is prepared as an off-white solid (232 mg, 70% yield) following Scheme 3 and in analogy to Example 35 using (3S,4R)-4-benzyloxycarbonylamino-piperidine-3-carboxylic acid ethyl ester (200 mg, 0.63 mmol, 1.0 eq) (prepared according to procedures described in WO2005/066176) and (7-methoxy-quinoxalin-2-ylsulfanyl)-acetaldehyde (158 mg, 0.63 mmol 1.0 eq) as starting materials.

Provenance & Evidence