[CH:1]1([CH2:8][CH2:9][NH:10][C:11](=[O:59])[C@H:12]([CH3:58])[C@H:13]([C@@H:16]2[CH2:20][CH2:19][CH2:18][N:17]2[C:21](=[O:57])[CH2:22][C@@H:23]([O:55][CH3:56])[C@@H:24]([N:29]([CH3:54])[C:30](=[O:53])[C@H:31]([CH:50]([CH3:52])[CH3:51])[NH:32]C(OCC2C3C=CC=CC=3C3C2=CC=CC=3)=O)[C@@H:25]([CH3:28])[CH2:26][CH3:27])[O:14][CH3:15])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=[CH:2]1.C(NCC)C>ClCCl>[CH:1]1([CH2:8][CH2:9][NH:10][C:11](=[O:59])[C@H:12]([CH3:58])[C@H:13]([C@@H:16]2[CH2:20][CH2:19][CH2:18][N:17]2[C:21](=[O:57])[CH2:22][C@@H:23]([O:55][CH3:56])[C@@H:24]([N:29]([CH3:54])[C:30](=[O:53])[C@H:31]([CH:50]([CH3:51])[CH3:52])[NH2:32])[C@@H:25]([CH3:28])[CH2:26][CH3:27])[O:14][CH3:15])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=[CH:2]1According to the general procedure A, from #175 (560 mg, 0.690 mmol, 1 eq.) in dichloromethane (9 mL), and N,N-diethylamine (6.0 mL), was synthesized the crude desired compound, which was purified by by silica gel chromatography (Gradient: 0 to 50% methanol in dichloromethane) to afford #176 (351 mg, 87%) as a yellow oil. LC-MS (Protocol Q1): m/z 589.5 [M+H+], retention time=0.72 minutes.
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