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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 652551Generated: November 2, 2026

Hydrochloric Acid → HCID 20197561, compound

https://huagongshe.com/reaction/652551

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 20197438HCID 20197438—
SolventWaterHCID 962—
ProductHCID 20197561HCID 20197561—

Reaction Steps

A solution of 0.5 g of 2,6-dimethyl-3-methoxycarbonyl-4-(3-nitrophenyl)-5-[2-(4-methoxycarbonylmethoxyphenyl)ethoxycarbonyl]-1,4-dihydropyridine, 0.5 mL 10% aqueous NaOH, and 20 mL of methanol was heated on a steam bath for 20 min. The mixture was diluted with water, acidified with HCl, and extracted with ethyl acetate. The ethyl acetate was dried and evaporated to yield 0.40 g of 2,6-dimethyl-3-methoxycarbonyl-4-(3-nitrophenyl)-5-[2-(4-carboxymethylphenyl)ethoxycarbonyl]-1,4-dihydropyridine (1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04672071
Source datasetuspto-grants-1987_06
ORD IDord-bdae9886361d429fbe6a14e6665b4f25
Source noteuspto-grants-1987_06