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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1656599Generated: October 31, 2026

Hydrochloric Acid → HCID 19788726, compound

https://huagongshe.com/reaction/1656599

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantHCID 19788718HCID 19788718—
SolventDichloromethaneHCID 6344—
ProductHCID 19788726HCID 1978872648%

Reaction Steps

To the above amine (1.50 g, 3.59 mmol) in CH2Cl2 (30 mL) at 0° C. under nitrogen was added pyridine (0.58 mL, 7.18 mmol) and methanesulfonyl chloride (0.42 mL, 5.38 mmol). After stirring for 2 hours, the mixture was partitioned between 10% aqueous NaHCO3 and 4:1 CH2Cl2 /isopropanol. The organic phase was dried and concentrated to afford a residue which was treated with ethanolic HCl to give 0.85 g (48%) of the title compound as a hydrochloride: mp: 170°-175° C.; 1H NMR (DMSO-d6): δ 10.12 (s, 1H), 9.45 (s, 1H), 7.45 (d, J=8.56 Hz, 2H), 7.25 (d, J=8.59 Hz, 2H), 7.16 (d, J=8.96 Hz, 2H), 6.97 (d, J=8.97 Hz, 2H), 4.37 (m, 2H), 3.60-3.25 (m, 10H), 3.05 (s, 3H), 2.87 (s, 3H); IR (KBr): 3010, 2580, 2460, 1640, 1610 cm-1 ; MS (m/z) 497 (MH+, 10%), 198 (35), 79 (100).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05254689
Source datasetuspto-grants-1993_10
ORD IDord-ce3b4694e3574194ac551f77ac9385b9
Source noteuspto-grants-1993_10