Trifluoroacetic acid → 6-(azetidin-3-ylamino)-4(S),7-dimethyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid
反応式
C(OC([N:8]1[CH2:11][CH:10]([NH:12][C:13]2[CH:14]=[C:15]3[C:24](=[CH:25][C:26]=2[CH3:27])[O:23][CH2:22][C:21]2[N:16]3[C@@H:17]([CH3:29])[C:18](=[O:28])[NH:19][N:20]=2)[CH2:9]1)=O)(C)(C)C.[C:30]([OH:36])([C:32]([F:35])([F:34])[F:33])=[O:31]>C(Cl)Cl>[F:33][C:32]([F:35])([F:34])[C:30]([OH:36])=[O:31].[NH:8]1[CH2:9][CH:10]([NH:12][C:13]2[CH:14]=[C:15]3[C:24](=[CH:25][C:26]=2[CH3:27])[O:23][CH2:22][C:21]2[N:16]3[C@@H:17]([CH3:29])[C:18](=[O:28])[NH:19][N:20]=2)[CH2:11]1参加物
4
実験手順
A solution of 3-(4(S),7-dimethyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester (enantiomer 2, SFC (Table 1, Method 8), Rt=4.151 min, 0.240 g, 0.60 mmol) in TFA (4 mL) and DCM (24 mL) was stirred at 25° C. for 3 h. The solvent was removed in vacuo to give 6-(azetidin-3-ylamino)-4(S),7-dimethyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid (Example #54-2, Enantiomer 2, SFC (Table 1, Method 9), Rt=4.945 min, 0.246 g, 98%) as a yellow solid. LC/MS (Table 1, Method 5) Rt=2.048 min.; MS m/z: 302 [M+H]+.