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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2194040Generated: October 30, 2026

5-Methylthiophene-2-sulfonyl chloride → Methanesulfonic acid 4-[8-(5-methyl-thiophene-2-sulfonyl)-1-oxo-2,8-diaza-spiro[4.5]dec-2-yl]-phenyl ester

https://huagongshe.com/reaction/2194040

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Methylthiophene-2-sulfonyl chlorideHCID 12400112—
ReactantPhenol, 4-amino-, 1-methanesulfonateHCID 19885019—
Reactant4-(2-Methoxy-ethyl)-piperidine-4-carboxylic acid ethyl esterHCID 56753969—
ProductMethanesulfonic acid 4-[8-(5-methyl-thiophene-2-sulfonyl)-1-oxo-2,8-diaza-spiro[4.5]dec-2-yl]-phenyl esterHCID 49803344—

Reaction Steps

Brown solid. MS (ESI): 485.08 (MH+). This example was prepared in analogy to example 1 step C) to D) from 4-(2-methoxy-ethyl)-piperidine-4-carboxylic acid ethyl ester (example 1 step B)), 5-methylthiophene-2-sulphonyl chloride and methanesulfonic acid 4-amino-phenyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329904B2
Source datasetuspto-grants-2012_12
ORD IDord-2fed466c47eb4c64a293ca911cb734f7
Source noteuspto-grants-2012_12