[C:1]1([C:7]2([CH2:11][C:12]([OH:14])=O)[CH2:10][CH2:9][CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl.[CH3:16][NH:17][O:18][CH3:19].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>ClCCl.O>[CH3:19][O:18][N:17]([CH3:16])[C:12](=[O:14])[CH2:11][C:7]1([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH2:10][CH2:9][CH2:8]1A suspension of Example 68C (2.0 g, 10.5 mmol), N,O-dimethylhydroxylamine hydrochloride (1.5 g, 15.8 mmol), HATU (4.8 g, 12.6 mmol) and triethylamine (2.1 g, 21.0 mmol) in 100 mL dichloromethane was stirred at room temperature overnight. The resulting mixture was diluted with water (100 mL) and the aqueous layer was extracted with dichloromethane (50 mL×3). The combined organic layer was dried over Na2SO4, filtered, and concentrated to afford yellow oil. The crude product was purified by reserve-phase C18 column chromatography (H2O/CH3OH=1:4) to afford desired compound (2.2 g, 9.4 mmol, 89.5%) of title compound. LC-MS: m/e=234.1 (M+H+).
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