反应详情

2′-Chloro-9′-cyclopentyl-5′-methyl-8′,9′-dihydrospiro[cyclobutane-1,7′-pyrimido[4,5-b][1,4]diazepin]-6′(5′H)-one (Intermediate 4) (0.065 g, 0.2 mmol, 1 eq), 4-amino-N-(trans-4-(4-(cyclopropylmethyl)piperazin-1-yl)cyclohexyl)-3-methoxybenzamide (Intermediate 11) (0.24 g, 0.6 mmol, 3 eq) and TFA (75 μL, 1 mmol, 5 eq) in TFE (6 mL) were heated to reflux together 40 hours. RM was concentrated in vacuo and the residue was partitioned between EtOAc and saturated sodium hydrogen carbonate. The organic layer was separated, washed with saturated brine and concentrated in vacuo to a residue that was purified by preparative RP-HPLC-MS (Preparative—1) to give 4-(9′-cyclopentyl-5′-methyl-6′-oxo-5′,6′,8′,9′-tetrahydrospiro[cyclobutane-1,7′-pyrimido[4,5-b][1,4]diazepine]-2′-ylamino)-N-((trans)-4-(4-(cyclopropylmethyl)piperazin-1-yl)cyclohexyl)-3-methoxybenzamide.

1. temperatureto reflux together 40 hours
2. concentrationRM was concentrated in vacuo
3. customthe residue was partitioned between EtOAc and saturated sodium hydrogen carbonate
4. customThe organic layer was separated
5. washwashed with saturated brine
6. concentrationconcentrated in vacuo to a residue that
7. customwas purified by preparative RP-HPLC-MS (Preparative—1)