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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 389916Generated: October 26, 2026

(1R/S,3R)-3-Hydroxy-1-(isoxazol-3-ylcarbamoylmethyl)-1-methyl-pyrrolidinium bromide → (R/S)-(2-Cyclohexyl-2-hydroxy-2-phenyl-acetoxy)-1-(isoxazol-3-ylcarbamoyl-methyl)-1-methyl-pyrrolidinium bromide

https://huagongshe.com/reaction/389916

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(1R/S,3R)-3-Hydroxy-1-(isoxazol-3-ylcarbamoylmethyl)-1-methyl-pyrrolidinium bromideHCID 131730241—
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-(isoxazol-3-ylcarbamoyl-methyl)-1-methyl-pyrrolidinium bromideHCID 131730245—

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 (1R/S,3R)-3-hydroxy-1-(isoxazol-3-ylcarbamoyl-methyl)-1-methyl-pyrrolidinium bromide (Intermediate D).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383625B2
Source datasetuspto-grants-2013_02
ORD IDord-1e7e88cc66f344c483ca03f65ddea787
Source noteuspto-grants-2013_02