Piperidine → HCID 68476315, compound

Participants

Reaction Steps

In analogy to the procedure described for the synthesis of 4-{(3S,4S)-3-(4-Chloro-phenyl)-4-[(S)-1-(3,4-dichloro-phenoxy)-ethyl]-piperidine-1-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-5′-carbonitrile (example 49) the respective piperidine derivative was prepared from (R)-1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanol and 5-Chloro-2-hydroxy-pyridine via Mitsunobu reaction and subsequently the benzyl group was cleaved by treatment with 1-chloroethyl-chloroformate, DIPEA and methanol to yield 5-Chloro-2-{(S)-1-[(3S,4S)-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethoxy}-pyridine. Coupling with 5′-Cyano-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-carboxylic acid (commercially available) yielded the title compound as off-white solid. MS (m/e): 566.4 [(M+H)+].

Provenance & Evidence