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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409575Generated: November 2, 2026

Sodium Carbonate → HCID 67284974, compound

https://huagongshe.com/reaction/2409575

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)pyridin-2-amineHCID 46864103—
ReactantHCID 66717017HCID 66717017—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventDichloromethaneHCID 6344—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 67284974HCID 6728497441%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 5-Iodo-2-(1′-(tert-butoxycarbonyl)-2-oxo-1,2-dihydrospiro[indole-3,4′-piperidine]-5-yl)-imidazo[2,1-b][1,3,4]thiadiazole (46 mg, 0.082 mmol), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3-trifluoromethyl-pyridin-2-ylamine (31 mg, 0.106 mmol), PdCl2(dppf) (13 mg, 0.016 mmol) and sat Na2CO3 (0.41 mL) in DME (0.82 mL) was heated under microwave irradiation at 120° C. for 30 min. The reaction mixture was diluted with DCM and washed with H2O. The organic layer was dried (Na2SO4), filtered and concentrated. The residue was purified by column chromatography (Isolute/Flash, Sill, 0% to 5% MeOH in DCM) to give the desired product (19.5 mg, 41%) as a yellow solid. HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=5.77 min, [M+H]+ m/z 586.2; 1H NMR (300 MHz, DMSO) δ 10.90 (s, 1H), 8.87 (d, J=1.8 Hz, 1H), 8.43 (d, J=2.0 Hz, 1H), 8.01 (d, J=1.6 Hz, 1H), 7.83 (dd, J=8.1, 1.7 Hz, 1H), 7.77 (s, 1H), 7.07 (d, J=8.2 Hz, 1H), 6.72 (s, 2H), 3.71 (s, 4H), 1.77 (m, 4H), 1.46 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815918B2
Source datasetuspto-grants-2014_08
ORD IDord-23a6c258f5d54ef6aab53039b3168858
Source noteuspto-grants-2014_08