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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 505751Generated: October 29, 2026

Ethanol → HCID 68802545, compound

https://huagongshe.com/reaction/505751

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTriethylamineHCID 8471—
ReactantMethanesulfonamideHCID 72879—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 24983756HCID 24983756—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68802545HCID 6880254539%

Reaction Steps

A solution of (±)-(3RS,3aRS)-2-(3-chloro-4-cyanophenyl)-3-(4-fluorophenyl)-3,3a,4,5-tetrahydro-2H-benzo[g]indazole-7-carboxylic acid, Example 2 (45 mg, 0.10 mmol), methylsulfonamide (12 mg, 0.12 mmol), triethylamine (0.021 mL, 0.15 mmol), and tetrahydrofuran (1.0 mL) was treated with N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (29 mg, 0.15 mmol) followed by 4-dimethylaminopyridine (15 mg, 0.12 mmol) at room temp. The reaction was stirred at room temp overnight. The reaction was concentrated and purified by reverse-phase HPLC (40 to 95% acetonitrile/water/0.05% trifluoroacetic acid) to give the title compound (yellow solid, 20.6 mg, 0.0394 mmol, 39% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 0.70-0.92 (m, 1H), 1.72-1.89 (m, 1H), 2.84-3.04 (m, 2H), 3.35 (s, 3H), 3.98 (ddd, J=13.67, 10.94, 5.08 Hz, 1H), 5.95 (d, J=11.33 Hz, 1H), 6.65-7.58 (m, 6H), 7.67 (d, J=8.98 Hz, 1H), 7.75-7.89 (m, 2H), 8.16 (d, J=8.20 Hz, 1H), 12.17 (s, 1H). ES-MS m/z 523 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07781428B2
Source datasetuspto-grants-2010_08
ORD IDord-24dbf2f72ce148eb84a8a2da9e958b05
Source noteuspto-grants-2010_08