Methanol → 4-(9'-cyclohexyl-5'-methyl-6'-oxo-5',6',8',9'-tetrahydrospiro[cyclopropane-1,7'-pyrimido[5,4-b][1,4]diazepine]-2'-ylamino)-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

2′-chloro-9′-cyclohexyl-5′-methyl-8′,9′-dihydrospiro[cyclopropane-1,7′-pyrimido[5,4-b][1,4]diazepin]-6′(5′H)-one (Intermediate 270; 54 mg, 0.17 mmol), 4-amino-N-(1-ethyl-4-piperidyl)-2-fluoro-5-methoxy-benzamide (Intermediate 205; 50 mg, 0.17 mmol), and p-toluenesulphonic acid monohydrate (81 mg, 0.43 mmol) were stirred together in 4-methyl-2-pentanol (3 mL) and heated at 110° C. for 18 hours. The cooled reaction mixture was loaded onto an SCX-3 (5 g) column pre-wet with MeOH. The column was washed with MeOH (2 column volumes) and eluted with 2M NH3/MeOH. Solvent evaporation of the combined ammoniacal fractions gave a brown gum which was purified by base modified reverse phase preparative HPLC to yield the title compound as a white solid (48 mg, 49%)

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