[C:1]([C:3]1[C:4]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)=[C:5]2[CH2:28][CH2:27][CH2:26][C:6]2=[N:7][C:8]=1[S:9][CH2:10][C:11]1[N:12]=[C:13]([C:16]2[CH:25]=[CH:24][C:19]([C:20]([O:22]C)=[O:21])=[CH:18][CH:17]=2)[S:14][CH:15]=1)#[N:2].[OH-].[Na+].Cl>O1CCOCC1>[C:1]([C:3]1[C:4]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)=[C:5]2[CH2:28][CH2:27][CH2:26][C:6]2=[N:7][C:8]=1[S:9][CH2:10][C:11]1[N:12]=[C:13]([C:16]2[CH:25]=[CH:24][C:19]([C:20]([OH:22])=[O:21])=[CH:18][CH:17]=2)[S:14][CH:15]=1)#[N:2]80 mg (0.17 mmol) of the compound from Example 13 were dissolved in 1.7 ml of dioxane, and 0.33 ml of a 1N aqueous sodium hydroxide solution were added. The reaction mixture was stirred at 50° C. for 3 h. 0.36 ml of 1N hydrochloric acid was then added to the mixture, and the resulting precipitate was filtered off, washed with water and dried.
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