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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353580Generated: October 30, 2026

Hydroxylamine → 4-(4-But-2-ynyloxybenzenesulfonyl)-N-hydroxy-1-[(4-methoxyphenyl)sulfonyl]-4-piperidinecarboxamide

https://huagongshe.com/reaction/353580

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxylamineHCID 787—
Reactant4-MethylmorpholineHCID 7972—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant4-(4-But-2-ynyloxybenzenesulfonyl)-1-[(4-methoxyphenyl)sulfonyl]-4-piperidinecarboxylic acidHCID 23513776—
SolventDimethylformamideHCID 6228—
Product4-(4-But-2-ynyloxybenzenesulfonyl)-N-hydroxy-1-[(4-methoxyphenyl)sulfonyl]-4-piperidinecarboxamideHCID 23513841—

Reaction Steps

4-(4-But-2-ynyloxybenzenesulfonyl)-N-hydroxy-1-[(4-methoxyphenyl)-sulfonyl]-4-piperidinecarboxamide was prepared following the procedure Example 64 (step 6). Starting from 4-(4-But-2-ynyloxybenzenesulfonyl)-1-[(4-methoxyphenyl)-sulfonyl]-4-piperidinecarboxylic acid (402 mg, 0.79 mmol) in dimethylformamide (8 ml), 1-hydroxybenzotriazole (128 mg, 0.95 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (212 mg, 1.11 mmol), N-methylmorpholine (0.130 ml, 1.19 mmol), and hydroxylamine (0.242 ml, 3.95 mmol), 396 mg (96%) of the product was isolated as a solid. HR-MS: m/z Calculated for C23H26N2O8S2 523.1203; Found 523.1198.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06753337B2
Source datasetuspto-grants-2004_06
ORD IDord-35fe523124fc4c6b8e200acc55793223
Source noteuspto-grants-2004_06