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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 877030Generated: 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-[4-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}acetamide

https://huagongshe.com/reaction/877030

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-(4-Fluoro-3-(trifluoromethyl)phenyl)thiazol-2-amineHCID 44449842—
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-[4-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}acetamideHCID 46927773—

Reaction Steps

The title compound was prepared according to the general procedure (Method A) by coupling Intermediate 1 (102 mg, 0.401 mmol) with 4-[4-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-amine (105 mg, 0.401 mmol) in the presence of EDCI hydrochloride (92 mg, 0.481 mmol), HOBt (16 mg, 0.120 mmol) and DMAP (5 mg, 0.040 mmol) in 1,2 dichloroethane (4 ml) to give 23 mg of the product as a white solid; 1H NMR (300 MHz, DMSO-d6) δ 3.19 (s, 3H), 3.47 (s, 3H), 4.06 (s, 2H), 7.07 (s, 1H), 7.64 (t, J=9.0 Hz, 1H), 7.83 (s, 1H), 8.08-8.36 (m, 2H), 12.48 (br s, 1H); ESI-MS (m/z) 499.10 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987278B2
Source datasetuspto-grants-2015_03
ORD IDord-ee5e60b60e494ffeb6c7977dbe7aefc0
Source noteuspto-grants-2015_03