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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1282004Generated: October 28, 2026

Pyridine → HCID 70117622, compound

https://huagongshe.com/reaction/1282004

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 10117643HCID 10117643—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 70117622HCID 70117622—

Reaction Steps

A solution of 0.02 g (0.04 mmol) of 1-(2,4-dichlorobenzyl)-3-(S)-(4-(3-hydroxypropyloxymethyl)piperidinylmethyl)-4-(S)-(3-thienyl)pyrrolidine (Example 17), 0.25 mL (0.12 mmol) of acetic anhydride, 0.25 mL (0.3 mmol) of pyridine and a catalytic amount of DMAP in 0.5 mL of CH2Cl2 was stirred at rt for 2 h. TO the reaction mixture was added 10 mL of sat'd Na2CO3 solution and it was extracted with CH2Cl2. The combined organic layers were dried over MgSO4, filtered and the filtrate was concentrated. The residue was purified by chromatography (silica, hexanes:ethyl acetate, 1:1) to give the title compound. Mass Spectrum (ESI) m/e=539 (M+1 35Cl, 35Cl), 541 (M+1 35Cl, 37Cl), and 543 (M+1 37Cl, 37Cl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455548B2
Source datasetuspto-grants-2002_09
ORD IDord-bf015af8e8f049b59d21e4b8cc6ce050
Source noteuspto-grants-2002_09