[S:1]1[CH:5]=[CH:4][N:3]=[C:2]1[NH:6][CH2:7][CH2:8][O:9][C:10]1[CH:19]=[CH:18][C:13]([C:14]([O:16]C)=[O:15])=[CH:12][CH:11]=1.[ClH:20]>>[ClH:20].[S:1]1[CH:5]=[CH:4][N:3]=[C:2]1[NH:6][CH2:7][CH2:8][O:9][C:10]1[CH:19]=[CH:18][C:13]([C:14]([OH:16])=[O:15])=[CH:12][CH:11]=1Ester 24-4 (180 mg, 0.65 mmol) was heated at 50° in 6 mL 6 N HCl for 16 h, then concentrated providing 24-5 as a yellow solid.
Wird geladen…