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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1979246Generated: October 30, 2026

p-Toluenesulfonic acid monohydrate → HCID 86756956, compound

https://huagongshe.com/reaction/1979246

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantHCID 86756958HCID 86756958—
SolventMethanolHCID 887—
ProductHCID 86756956HCID 8675695634.1%

Reaction Steps

A solution of 0.205 g of 2(R)-(4-Cyclohexyl-1(S)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]butyl]-2′-isobutyl-4-methyl-2′-[2-(1-imidazoyl)acetyl]valerohydrazide in 5 ml of methanol was treated with 0.075 g of p-toluenesulphonic acid monohydrate. The mixture was stirred at room temperature for 6 hours and evaporated. The residue was purified by flash column chromatography on silica gel using methanol/dichloromethane (5:95) as the eluant to give 0.080 g of 2(R)-[4-cyclohexyl-1(S)-(hydroxycarbamoyl)butyl]-2′-isobutyl-4-methyl-2′-(2-(1-imidazoyl)acetyl]valerohydrazide p-toluenesulphonate in the form of a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06239151B1
Source datasetuspto-grants-2001_05
ORD IDord-9cfd034dfd5c4d00b98b0ed2e7836edc
Source noteuspto-grants-2001_05