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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409578Generated: October 31, 2026

Sodium Carbonate → HCID 66717020, compound

https://huagongshe.com/reaction/2409578

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 67283603HCID 67283603—
CatalystHCID 178418476HCID 178418476—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66717020HCID 6671702012.1%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 5-(5-Iodo-imidazo[2,1-b][1,3,4]thiadiazol-2-yl)-1H-indole (0.091 g, 0.247 mmol, 1 eq), 5-(4,4,5,5-tetramethyl[-1,3,2]dioxaborolan-2-yl)-3-trifluoromethyl-pyridin-2-ylamine (0.107 g, 0.371 mmol, 1.5 eq), 2M aq Na2CO3 (1 mL) and PdCl2(PPh3)2 (0.035 g, 0.049 mmol, 0.2 eq) in dioxane (5 mL) was heated at 110° C. for 24 h. The solvent was removed in vacuo, redissolved in DCM/water (150 mL) and extacted with DCM (2×80 mL). The organic layer was dried (MgSO4), filtered and evaporated. The residue was purified by column chromatography (0-10% MeOH in DCM and a second column 0-5% MeOH in DCM) to afford the desired product (12 mg, 12%) as a yellow solid. HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=5.08 min, [M+H]+ m/z 401.0; 1H NMR (300 MHz, DMSO) δ 11.57 (s, 1H), 8.90 (d, J=1.8 Hz, 1H), 8.39 (d, J=2.1 Hz, 1H), 8.20 (d, J=1.6 Hz, 1H), 7.75 (s, 1H), 7.73 (dd, J=9.2, 2.4 Hz, 1H), 7.61 (d, J=8.6 Hz, 1H), 7.52 (m, 1H), 6.73 (s, 2H), 6.64 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815918B2
Source datasetuspto-grants-2014_08
ORD IDord-cd53aec242eb47e9b10a028ec3722684
Source noteuspto-grants-2014_08