Diisopropylethylamine → HCID 58116944, compound

Participants

Reaction Steps

A solution of 4-({3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}amino)-5,6,7,8-tetrahydrothieno[2,3-b:5,4-c′]dipyridine-3-carbonitrile from Example 90A (80 mg, 0.17 mmol) and (2E)-4-[methyl(1-methylethyl)amino]but-2-enoic acid hydrochloride from Example 2A (47 mg, 0.24 mmol) in DMF (2 mL) was treated with DIPEA (89 mg, 0.69 mmol) and TBTU (83 mg, 0.26 mmol). The mixture was stirred at rt overnight and then directly purified by preparative HPLC to yield 63 mg (61%) of the title compound.

Provenance & Evidence