4-Cyclopentylpiperazin-1-amine → 4-(9-cyclohexyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-N-(4-cyclopentylpiperazin-1-yl)-3-methoxybenzamide

Participants

Role	Name	HCID	Charge
Reactant	4-Cyclopentylpiperazin-1-amine	HCID 1512485	—
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	4-(9-cyclohexyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid	HCID 25253680	—
Product	4-(9-cyclohexyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-N-(4-cyclopentylpiperazin-1-yl)-3-methoxybenzamide	HCID 25254306	—

Reaction Steps

The title compound was synthesized from 4-(9-cyclohexyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[5,4-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acid as described in the General procedure for amide bond synthesis using HATU and 1-N-cyclopentyl piperazine-4-amine. The final compound was purified by reverse phase HPLC and basified to give the free base. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.11-1.92 (m, 18 H) 2.93 (br. s., 4 H) 3.31 (s, 3 H) 3.93 (s, 3 H) 4.06 (t, J=13.39 Hz, 2 H) 4.44 (m, 1 H) 7.41 (d, J=8.0 Hz, 1 H) 7.43 (s, 1 H) 7.90 (s, 1 H) 8.21 (s, 1 H) 8.27 (d, J=8.34 Hz, 1 H) 9.37 (s, 1 H). Melting point: 98-99° C. [M+H] calculated for C31H42F2N8O3, 613; found 613.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08318727B2
Source dataset	uspto-grants-2012_11
ORD ID	ord-ab1f36cb9ccd420487b577e8f1b2f05a
Source note	uspto-grants-2012_11