反应详情

To a mixture of 0.08 g (0.19 mmole) of 4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid (I-292), 0.20 mL (1.2 mmole) of ethyldiisopropyl amine and 0.072 mg (0.21 mmole) of a cis/trans mixture of 4-(4-cyclopropylmethyl-piperazin-1-yl)-cyclohexylamine with trihydrochloride in 2.0 mL of dimethylformamide was added 0.090 g (0.21 mmole) of 1-(di-1-pyrrolidinylmethylene)-1H-benzotriazolium 3-oxide hexafluorophosphate. The mixture was stirred at room temperature for 1 hour, then diluted with 10 mL of ice water. The resulting solid was collected by filtration, washed with saturated sodium carbonate and water, and dried under vacuum. Purification by silica gel chromatography, eluting with dichloromethane-methanol (gradient, 100:0-70:30) gave 0.024 g of N-[cis-4-(4-cyclopropylmethyl-piperazin-1-yl)-cyclohexyl]-4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzamide (I-301) (Rf: 0.58 in dichloromethane:methanol 7:3) as a white solid and 0.061 g of N-[trans-4-(4-cyclopropylmethyl-piperazin-1-yl)-cyclohexyl]-4-(7,7-difluoro-9-isopropyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzamide (I-302) (Rf: 0.46 in dichloromethane:methanol 7:3) as a white solid.

1. filtrationThe resulting solid was collected by filtration
2. washwashed with saturated sodium carbonate and water
3. customdried under vacuum
4. customPurification by silica gel chromatography
5. washeluting with dichloromethane-methanol (gradient, 100:0-70:30)