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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353577Generated: October 30, 2026

Hydroxylamine → HCID 23513897, compound

https://huagongshe.com/reaction/353577

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxylamineHCID 787—
Reactant4-MethylmorpholineHCID 7972—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 23513784HCID 23513784—
SolventDimethylformamideHCID 6228—
ProductHCID 23513897HCID 23513897—

Reaction Steps

4-(4-but-2-ynyloxybenzenesulfonyl)-N-hydroxy-1-(2-thienylcarbonyl)-4-piperidinecarboxamide was prepared following the procedure Example 64 (step 6). Starting from 4-(4-but-2-ynyloxybenzenesulfonyl)-1-(2-thienylcarbonyl)-4-piperidinecarboxylic acid (335 mg, 0.75 mmol) in dimethylformamide (7 ml), 1-hydroxybenzotriazole(121 mg, 0.90 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (201 mg, 1.05 mmol), N-methylmorpholine (0.124 ml, 1.13 mmol), and hydroxylamine (0.229 ml, 3.75 mmol), 216 mg (62%) of the product was isolated as a solid. HR—MS: m/z Calculated for C21H22N2O6S2 463.0992; Found 463.0988.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06753337B2
Source datasetuspto-grants-2004_06
ORD IDord-d3e0178bf45b4a6c91145113211e4218
Source noteuspto-grants-2004_06