Hydrochloric Acid → 2-(1-Aminomethyl-6,7-dimethoxy-isoquinolin-4-ylamino)thiazole-4-carboxylic acid ethyl ester hydrochloride salt

HRID 14672

Reaction equation

HRID 14672 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([NH:11][C:12]2[C:21]3[C:16](=[CH:17][C:18]([O:24][CH3:25])=[C:19]([O:22][CH3:23])[CH:20]=3)[C:15]([CH2:26][NH:27]C(OC(C)(C)C)=O)=[N:14][CH:13]=2)[S:9][CH:10]=1)=[O:5])[CH3:2].[ClH:35]>C(Cl)Cl.O1CCOCC1>[ClH:35].[CH2:1]([O:3][C:4]([C:6]1[N:7]=[C:8]([NH:11][C:12]2[C:21]3[C:16](=[CH:17][C:18]([O:24][CH3:25])=[C:19]([O:22][CH3:23])[CH:20]=3)[C:15]([CH2:26][NH2:27])=[N:14][CH:13]=2)[S:9][CH:10]=1)=[O:5])[CH3:2]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 593411022-[1-(Tert-butoxycarbonylamino-methyl)-6,7-dimethoxy-isoquinolin-4-ylamino]thiazole-4-carboxylic acid ethyl ester

Product 1

HCID 867611282-(1-Aminomethyl-6,7-dimethoxy-isoquinolin-4-ylamino)thiazole-4-carboxylic acid ethyl ester hydrochloride saltYield 93%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 312751,4-DioxaneSolvent

Procedure

2-[1-(tert-Butoxycarbonylamino-methyl)-6,7-dimethoxy-isoquinolin-4-ylamino]-thiazole-4-carboxylic acid ethyl ester (40 mg, 0.0818 mmol) in CH2Cl2 (1.0 mL) was treated with a 4.0 M HCl solution in dioxane (0.21 mL) at room temperature. After the reaction mixture was stirred at room temperature for 15 h, the suspension was filtered. The yellow solid was dried in vacuo to give 2-(1-aminomethyl-6,7-dimethoxy-isoquinolin-4-ylamino)thiazole-4-carboxylic acid ethyl ester hydrochloride salt (32.3 mg; 93%). 1H-NMR (D2O): δ, 8.81 (s, 1H), 7.46 (s, 1H), 7.18 (s, 1H), 7.13 (s, 1H), 4.63 (s, 2H), 4.14 (q, 2H, J=7.1 Hz), 3.86 (s, 3H), 3.83 (s, 3H), 1.20 (t, 3H, J=7.3 Hz); MS: calculated for C18H21N4O4S (M−Cl) 389.0; found: 389.0.

Workup

  1. filtrationthe suspension was filtered
  2. customThe yellow solid was dried in vacuo

Sources & evidence

ORD record
ord-d5a92311e4554d24ad3325e95119763c
Source dataset
uspto-grants-2010_06
Patent number
US07732446B1

Linked notes

Loading…