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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290547Generated: October 30, 2026

Hydrochloric Acid → HCID 18924114, compound

https://huagongshe.com/reaction/1290547

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 18918492HCID 18918492—
SolventMethanolHCID 887—
ProductHCID 18924114HCID 1892411460.7%

Reaction Steps

To a solution of ethyl 4-[4-[3-(4-dimethylaminopyrid-3-yl)propyloxy]phenoxy]butyrate (160 mg) in methanol (10 ml) was added sodium hydroxide solution (2.0 ml of 1.0M) and the solution left until all starting ester had disappeared (Tlc). The reaction mixture was neutralised with hydrochloric acid (2.0 ml) of 1.0M) and evaporated in vacuo. A small amount (5 ml) of water was added and the resulting solution extracted with dichloromethane (3×15 ml). The organic extracts were combined, dried (PS paper) and evaporated to yield the title compound as colourless prisms, (90 mg) m.p. 106°-108° C. (from ethyl acetate); NMR (d6DMSO) δ 1.8-2.1(2H,q;2H,q); 2.4(2H,t); 2.8(2H,t;6H,s); 3.9(2H,t;2H,t); 6.8(5H,m); 8.2(2H,d); m/e 359 (M+H)+ ; calculated for C20 H26N2O4 : C,67.0;H,7.3;N, 7.8; found: C,67.1;H,7.6;N, 7.7%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05750754
Source datasetuspto-grants-1998_05
ORD IDord-143e335f108f4811b5c1a2ab99e9bb91
Source noteuspto-grants-1998_05