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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1891099Generated: October 25, 2026

1-Hydroxybenzotriazole → 2-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-5-yl)-N-{4-[3-(trifluoromethoxy)phenyl]-1,3-thiazol-2-yl}acetamide

https://huagongshe.com/reaction/1891099

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-[3-(Trifluoromethoxy)phenyl]-1,3-thiazol-2-amineHCID 2760731—
Reactant1,3,5-trimethylthieno[3,4-d]pyrimidine-2,4(1H,3H)-dioneHCID 71008093—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
Solvent1,2-DichloroethaneHCID 11—
Product2-(1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-5-yl)-N-{4-[3-(trifluoromethoxy)phenyl]-1,3-thiazol-2-yl}acetamideHCID 46927771—

Reaction Steps

The title compound was prepared according to the general procedure (Method A) by coupling Intermediate 1 (150 mg, 0.590 mmol) with 4-[3-(trifluoromethoxy)phenyl]-1,3-thiazol-2-amine (155 mg, 0.590 mmol) in the presence of EDCI hydrochloride (135 mg, 0.708 mmol), HOBt (24 mg, 0.177 mmol) and DMAP (7.21 mg, 0.059 mmol) in 1,2 dichloroethane (6 ml) to give 40 mg of the product as a white solid; 1H NMR (300 MHz, DMSO-d6) δ 3.19 (s, 3H), 3.47 (s, 3H), 4.07 (s, 2H), 7.07 (s, 1H), 7.32 (d, J=7.8 Hz, 1H), 7.58 (t, J=7.8 Hz, 1H), 7.78 (s, 1H), 7.87 (s, 1H), 7.94 (d, J=8.1 Hz, 1H), 12.44 (br s, 1H); ESI-MS (m/z) 497.03 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507503B2
Source datasetuspto-grants-2013_08
ORD IDord-d7319ed7456044f9bda5fc5b4559d913
Source noteuspto-grants-2013_08