Hydrochloric Acid → HCID 178492003, compound
Reaction equation
COC[N:4]1[C:8]2=[N:9][C:10]([N:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)=[CH:11][CH:12]=[C:7]2[N:6]=[C:5]1[C:19]1[S:20][C:21]2[C:27]([N:28]3[CH2:33][CH2:32][O:31][CH2:30][CH2:29]3)=[CH:26][CH:25]=[C:24]([O:34][CH3:35])[C:22]=2[N:23]=1.Cl>>[CH3:35][O:34][C:24]1[C:22]2[N:23]=[C:19]([C:5]3[NH:4][C:8]4=[N:9][C:10]([N:13]5[CH2:18][CH2:17][O:16][CH2:15][CH2:14]5)=[CH:11][CH:12]=[C:7]4[N:6]=3)[S:20][C:21]=2[C:27]([N:28]2[CH2:33][CH2:32][O:31][CH2:30][CH2:29]2)=[CH:26][CH:25]=1Participants
3
Procedure
0.065 g 3-Methoxymethyl-2-(4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-5-morpholin-4-yl-3H-imidazo[4,5-b]pyridine (0.13 mmol) was treated with 5N HCl (2 ml) at 90° C. for 1.5 h. The reaction mixture was concentrated, taken up in water (3 ml) and adjusted to pH 10 with ammonium hydroxide (25%), whereupon a precipitation formed. The precipitation was filtered and the crystals were triturated in hot ethanol. After drying in vacuo 0.036 g 2-(4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-5-morpholin-4-yl-3H-imidazo[4,5-b]pyridine (61%) was obtained as a yellow solid; M.p.: 260–262° C.
Workup
- concentrationThe reaction mixture was concentrated
- customadjusted to pH 10 with ammonium hydroxide (25%), whereupon a precipitation