Diisopropylethylamine → HCID 90308957, compound

Participants

Reaction Steps

Tert-butyl((1S,2R)-2-aminocyclohexyl)carbamate (302 mg) and diisopropylethylamine (0.40 ml) were added successively to a solution of ethyl 3-chloro-5-(1-methyl-1H-indol-4-ylamino)-1,2,4-triazine-6-carboxylate (390 mg) obtained in the above-described Step 1 in THF (10 ml), and the reaction solution was allowed to react at 70° C. for 2 hours. The reaction solution was diluted with ethyl acetate, washed successively with an aqueous sodium bicarbonate solution and a saturated saline solution, and then dried over anhydrous sodium sulfate. The solvent was evaporated under vacuum, and the resultant residue was purified by column chromatography on silica gel (developing solvent:hexane/ethyl acetate) to obtain ethyl 3-((1R,2S)-2-(tert-butoxycarbonylamino)cyclohexylamino)-5-(1-methyl-1H-indol-4-ylamino)-1,2,4-triazine-6-carboxylate as a yellow solid.

Provenance & Evidence