Triethylamine → HCID 178522415, compound

Participants

Reaction Conditions

Reaction Steps

By proceeding in a similar manner to Example 258(a) above but (i) treating a solution of 3-(1,5,6,7-tetrahydro-1,3-diaza-s-indacen-2-yl)-1H-pyrazol-4-ylamine [310 mg, Example 256(b)] and triethylamine (4 eq) in tetrahydrofuran (15 mL) with cyclopropanecarbonyl chloride (4 eq), (ii) stirring the reaction mixture at 60° C. for 2 hours, (iii) treating the resulting bis-acylated product with methanolic potassium hydroxide (20 mL, 10.05 g KOH) at 40° C. for 1 hour followed by treatment with aqueous ammonium chloride (200 mL), (iii) extracting this mixture three times with ethyl acetate (100 mL), (iv) evaporating the combined extracts and (v) chromatographing the residue on silica gel (ethyl acetate/gradient of 50-0% heptane) there was prepared cyclopropanecarboxylic acid [3-(1,5,6,7-tetrahydro-1,3-diaza-s-indacen-2-yl)-1H-pyrazol-4-yl]amide (50 mg) as a yellow solid. LC-MS (Method E) RT=2.05 minutes, 308 (M+H)+.

Provenance & Evidence