C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[N:19]=[C:18]([N:20]([CH3:22])[CH3:21])[N:17]=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O.[OH-].[Na+]>ClCCl>[CH3:21][N:20]([CH3:22])[C:18]1[N:19]=[C:14]([N:11]2[CH2:12][CH2:13][NH:8][CH2:9][CH2:10]2)[N:15]=[CH:16][N:17]=1A solution of 1 mmol of 4-(4-Dimethylamino-[1,3,5]triazin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester in 10 ml dichloromethane was chilled and treated with 14 mmol of trifluoroacetic acid. The reaction mixture was heated to 40° C. for 30 min. After cooling, 50 ml of 2M aqueous sodium hydroxide is added. The organic layer is separated, dried and concentrated to yield the title compound as a yellowish oil. MS (m/e): 267.0 (M+CH3COO+, 100%)
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