Water → HCID 67594115, compound

Participants

Reaction Steps

4-{2-[3-(1-tert-Butoxycarbonylmethyl-piperidin-4-yl)-1-(4-fluoro-benzyl)-1H-indazol-6-yl]-(E)-vinyl}piperidine-1-carboxylic acid tert-butyl ester (181 mg, 0.29 mmol) was stirred in trifluoroacetic acid (10 ml), containing water (1 ml) at +25° for 2.5 h. The solution was evaporated in vacuo and the residue purified by preparative h.p.l.c. using standard conditions (gradient profile 10-30% (ii) in 1 min, 30% (ii) isochratic for 30 min, 30-10% (ii) in 1 min), but with a flow rate of 20 ml/min. The collected eluant (Rf 21.2 min) was evaporated in vacuo and triturated with ether to give the title compound as a cream solid (80 mg). Analytical h.p.l.c. (gradient profile 10-90% (ii) in 25 min) Rf 12.5 min

Provenance & Evidence