Hydrochloric Acid → HCID 69194039, compound

Participants

Reaction Steps

) (5S)-4,5-dihydro-N-[4-(hydroxyphenylmethyl)phenyl]-3-(3-pyridinyl)-5-isoxazolecarboxamide (0.027 mol) was suspended in CH2Cl2 (250 ml). HCl, gas (excess) was allowed to bubble through the suspension for 2 minutes. SOCl2 (0.097 mol) was added dropwise and the reaction mixture was stirred and refluxed for 4 hours. The solvent was evaporated under reduced pressure. Toluene was added and azeotroped on the rotary evaporator (2×). The residue was stirred in toluene. The precipitate was filtered off, washed with toluene and dried, yielding 11.5 g (100% crude yield) of (5S)-N-[4-(chlorophenylmethyl)phenyl]-4,5-dihydro-3-(3-pyridinyl)-5-isoxazolecarboxamide monohydrochloride (compound 500).

Provenance & Evidence