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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 877033Generated: 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-[2-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}acetamide

https://huagongshe.com/reaction/877033

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-(2-Fluoro-3-(trifluoromethyl)phenyl)thiazol-2-amineHCID 12094052—
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-[2-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}acetamideHCID 46927841—

Reaction Steps

The title compound was prepared according to the general procedure (Method A) by coupling Intermediate 1 (100 mg, 0.393 mmol) with 4-[2-fluoro-3-(trifluoromethyl)phenyl]-1,3-thiazol-2-amine (103 mg, 0.393 mmol) in the presence of EDCI hydrochloride (90 mg, 0.472 mmol), HOBt (16 mg, 0.117 mmol) and DMAP (5 mg, 0.039 mmol) in 1,2 dichloroethane (6 ml) to give 40 mg of the product as an off-white solid; 1H NMR (300 MHz, DMSO-d6) δ 3.19 (s, 3H), 3.47 (s, 3H), 4.08 (s, 2H), 7.07 (s, 1H), 7.53 (t, J=7.5 Hz, 1H), 7.66 (s, 1H), 7.77 (t, J=6.9 Hz, 1H), 8.30-8.37 (m, 1H), 12.49 (br s, 1H); APCI-MS (m/z) 499.51 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987278B2
Source datasetuspto-grants-2015_03
ORD IDord-639d6cb06b40484c87c91dcb8daefe4b
Source noteuspto-grants-2015_03