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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2372846Generated: October 30, 2026

Hydrochloric Acid → HCID 178441662, compound

https://huagongshe.com/reaction/2372846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178441661HCID 178441661—
SolventWaterHCID 962—
ProductHCID 178441662HCID 178441662—

Reaction Steps

The title compound is prepared by treating 2-n-butyl-3-(2'-(tetrazol-5-yl)-biphen-4-yl)methyl-5-ethoxycarbonylpyrimidin-4(3H)-one (from Example 8) with an ester hydrolyzing agent such as sodium hydroxide in an appropriate solvent such as methanol, possibly with heating. Addition of water, acidification with concentrated HCl, saturation with NaCl, extraction with ether, washing of the combined organic extracts with brine, drying of the organic material over an appropriate drying agent such as MgSO4, and stripping of solvent in vacuo should give the crude organic acid which may then be purified by appropriate means such as silica gel chromatography. Alternatively, the ester from Example 8 is hydrolyzed using an appropriate esterase such as pig liver esterase followed by standard purification procedures.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05100897
Source datasetuspto-grants-1992_03
ORD IDord-800475e20a934ec5ac1d91c1394926ce
Source noteuspto-grants-1992_03