Cl.[CH:2]1([N:5]2[C:14]3[C:9](=[CH:10][C:11]([F:29])=[C:12]([N:16]4[CH2:20][CH2:19][CH:18]([NH:21]C(OC(C)(C)C)=O)[CH2:17]4)[C:13]=3[Cl:15])[C:8](=[O:30])[C:7]([C:31](=[O:37])[CH2:32][S:33]([CH3:36])(=[O:35])=[O:34])=[CH:6]2)[CH2:4][CH2:3]1>Cl.C(OC(=O)C)C>[ClH:15].[CH:2]1([N:5]2[C:14]3[C:9](=[CH:10][C:11]([F:29])=[C:12]([N:16]4[CH2:20][CH2:19][CH:18]([NH2:21])[CH2:17]4)[C:13]=3[Cl:15])[C:8](=[O:30])[C:7]([C:31](=[O:37])[CH2:32][S:33]([CH3:36])(=[O:35])=[O:34])=[CH:6]2)[CH2:4][CH2:3]15.4 g of the compound obtained from Example 32 was dissolved in 10% HCl-ethylacetate solution, and then stirred for 30 minutes. The resulting solid was filtered, and then dried to obtain 4.49 g of the object compound
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