Diisopropylethylamine → 2-[2-Hydroxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-3H-benzoimidazole-5-carboxylic acid [2-methoxy-4-(4-methyl-piperazin-1-yl)-phenyl]-amide

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	2-Methoxy-4-(4-methylpiperazin-1-yl)aniline dihydrochloride	HCID 68668637	—
Reactant	2-[2-Hydroxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-3H-benzoimidazole-5-carboxylic acid	HCID 136106325	—
Solvent	Dimethylformamide	HCID 6228	—
Product	2-[2-Hydroxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-3H-benzoimidazole-5-carboxylic acid [2-methoxy-4-(4-methyl-piperazin-1-yl)-phenyl]-amide	HCID 136106293	46.8%

Reaction Steps

To a solution of 2-[2-hydroxy-5-(2-methoxy-pyridin-3-yl)-phenyl]-3H-benzoimidazole-5-carboxylic acid (containing 1 equivalent of DMA, 44 mg, 0.1 mmol), 2-methoxy-4-(4-methyl-piperazin-1-yl)-phenylamine di HCl salt (29.4 mg, 0.1 mmol) and HATU (38 mg, 0.1 mmol) in DMF (1.2 mL) was added DIEA (45 mg, 0.35 mmol). The reaction mixture was stirred at room temperature for 2 h and heated at 60° C. for 3 h, and then evaporated under reduced pressure. The residue was diluted with DMSO (1.5 mL), filtered and then purified with using HPLC (TFA/H2O/CH3CN) to afford the title compound (26.4 mg, 39%). ESI-MS m/z 565.5 (MH+).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08629147B2
Source dataset	uspto-grants-2014_01
ORD ID	ord-e4b4fe006dc647a0bcfdff9fa9fad52a
Source note	uspto-grants-2014_01