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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 389917Generated: October 26, 2026

(R)-3-Hydroxy-1-methyl-1-(pyridazin-3-ylcarbamoylmethyl)-pyrrolidinium bromide → (R/S)-(2-Cyclohexyl-2-hydroxy-2-phenyl-acetoxy)-1-methyl-1-(pyridazin-3-yl-carbamoylmethyl)-pyrrolidinium bromide

https://huagongshe.com/reaction/389917

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(R)-3-Hydroxy-1-methyl-1-(pyridazin-3-ylcarbamoylmethyl)-pyrrolidinium bromideHCID 86636495—
Reactant(R/S)-(2-Cyclohexyl-2-hydroxy-2-phenyl-acetoxy)-1-methyl-1-(pyrazin-2-yl-carbamoylmethyl)-pyrrolidinium bromideHCID 131730243—
Reactant(1R/S,3R)-3-hydroxy-1-methyl-1-(pyrazin-2-yl-carbamoylmethyl)-pyrrolidinium bromideHCID 131730247—
Product(R/S)-(2-Cyclohexyl-2-hydroxy-2-phenyl-acetoxy)-1-methyl-1-(pyridazin-3-yl-carbamoylmethyl)-pyrrolidinium bromideHCID 131730249—

Reaction Steps

This compound is prepared by an analogous method to (1R/S,3R)-3-((R/S)-(2-cyclohexyl-2-hydroxy-2-phenyl-acetoxy)-1-methyl-1-(pyrazin-2-ylcarbamoylmethyl)-pyrrolidinium bromide (Example 1) by replacing (1R/S,3R)-3-hydroxy-1-methyl-1-(pyrazin-2-yl-carbamoylmethyl)-pyrrolidinium bromide (Intermediate B) with (R)-3-hydroxy-1-methyl-1-(pyridazin-3-ylcarbamoylmethyl)-pyrrolidinium bromide (Intermediate F).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383625B2
Source datasetuspto-grants-2013_02
ORD IDord-8aaa8c0d3f5149b2a6c3ab776adc34d1
Source noteuspto-grants-2013_02