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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 401996Generated: October 30, 2026

Hydrochloric Acid → HCID 67373992, compound

https://huagongshe.com/reaction/401996

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetyl chlorideHCID 6367—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 67374073HCID 67374073—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
ProductHCID 67373992HCID 6737399255.1%

Reaction Steps

To a solution of 5-[3-butyl-6-(1-methyl-piperidin-4-yloxy)-pyridazin-4-yl]-2-cyclohexyloxy-phenylamine trihydrochloride (0.2 mmol, 110 mg) in DCM (1.0 mL) at 0° C. was added acetyl chloride (0.4 mmol, 29 μL), DIEA (0.4 mmol, 70 μL) and DMAP (5 mg). And the mixture was stirred at room temperature for 1 hour. It was then condensed in vacuo and the residue was purified by silica gel chromatography (DCM to DCM+10% 2N NH3 in MeOH) to give a colorless sticky solid, which was dissolved in DCM (1.0 mL), 2N HCl in ether (1.0 mL) was added, kept at room temperature for 10 min, condensed, triturated with hexanes to provide the title compound (61 mg). LCMS: m/z 482 [M+1]. 1H NMR (400 MHz, CDCl3): δ 8.43 (1H, s), 7.89 (1H, s), 6.97 (2H, s), 6.81 (1H, s), 5.60 (1H, bs), 4.37-4.43 (1H, m), 3.10-3.45 (4H, m), 2.90-2.95 (2H, m), 2.81 (3H, s), 2.35-2.61 (4H, m), 2.23 (3H, s), 1.25-1.87 (14H, m), 0.83 (3H, t).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08741900B2
Source datasetuspto-grants-2014_06
ORD IDord-1f0bcd2d8a77413a9218b3b7e6a74e2f
Source noteuspto-grants-2014_06