Water → 3-Methoxy-4-[[2-methyl-6-[(2-methyl1,3-thiazol-4-yl)methyl]-3-oxo-2,6,8,10-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-9-yl]amino]-n-(1-methyl-4-piperidyl)benzamide

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10-chloro-6-methyl-2-[(2-methyl-1,3-thiazol-4-yl)methyl]-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-5-one (Intermediate 101; 58 mg, 0.18 mmol), 4-amino-3-methoxy-N-(1-methyl-4-piperidyl)benzamide (WO06/018220; 49 mg, 0.19 mmol) and p-toluene sulphonic acid (70 mg, 0.37 mmol) were taken up in 4-methyl-2-pentanol (2 mL) and heated to 160° C. in microwave by microwave irradiation for 1 hour. The reaction mixture was dissolved in methanol (5 mL) and water (˜5 mL) and poured directly onto an SCX-3 cartridge (2 g). The cartridge was washed through with methanol (˜30 mL), before elution of products with 2M ammonia in methanol (˜30 mL). Evaporation of the ammoniacal fraction gave an amber film which was purified by reverse phase HPLC to yield the title compound as an off white solid (43 mg, 26%)

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