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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1882173Generated: October 27, 2026

4-Cyclopropyl-1,3-thiazol-2-amine → HCID 46834416, compound

https://huagongshe.com/reaction/1882173

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Cyclopropyl-1,3-thiazol-2-amineHCID 674456—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant2-{(E)-2-[2-(2,2-Dimethylpropoxy)-3-(difluoromethoxy)phenyl]vinyl}imidazo[1,2-a]pyridine-3-carboxylic acidHCID 67549130—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 46834416HCID 46834416—

Reaction Steps

The title compound was prepared according to the general procedure (Method B) by coupling Intermediate 13 (100 mg, 0.240 mmol) with 4-cyclopropyl-1,3-thiazol-2-amine (37 mg, 0.264 mmol) in the presence of EDCI hydrochloride (91 mg, 0.480 mmol) and DMAP (27 mg, 0.240 mmol) in a mixture of THF and DMF (1:1, 4 mL) to give 35 mg of the product as an off-white solid; 1H NMR (300 MHz, CDCl3) δ 0.79-0.85 (m, 2H), 1.05 (s, 9H), 1.20-1.26 (m, 2H), 1.95-2.01 (m, 1H), 3.58 (d, J=5.4 Hz, 2H), 6.60-6.71 (m, 1H), 6.90-6.98 (m, 1H), 7.10-7.27 (m, 3H), 7.38-7.46 (m, 1H), 7.50-7.56 (m, 2H), 7.63-7.70 (m, 1H), 7.92 (d, J=15.6 Hz, 1H), 7.99 (d, J=15.0 Hz, 1H), 13.03 (br s, 1H); APCI-MS (m/z) 539.45 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08318928B2
Source datasetuspto-grants-2012_11
ORD IDord-ba62ebf9f3954e2296de54a11d8fffa9
Source noteuspto-grants-2012_11