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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 337234Generated: October 30, 2026

Hydrazine hydrate (1:1) → HCID 71060257, compound

https://huagongshe.com/reaction/337234

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 71059963HCID 71059963—
SolventEthanolHCID 702—
ProductHCID 71060257HCID 7106025798.1%

Reaction Conditions

Temperature70 °C

Reaction Steps

Hydrazine monohydrate (0.11 ml, 2.4 mmol) was added to a stirred solution of {1-[4-(1,3-dioxo-1,3-dihydro-isoindol-2-ylmethyl)-benzenesulfonyl]-piperidin-4-yl}-carbamic acid tert-butyl ester (0.4 g, 0.8 mmol) in ethanol (10 ml), the mixture was heated to 70° C. and stirred at this temperature for 4 hours. After this time, the precipitate was removed by filtration and the filtrate was concentrated. The resulting residue was triturated with DCM and the resulting precipitate was collected by filtration and dried under vacuum to give the title compound (0.29 g, 98% yield) as a white solid. Tr=1.38 min, m/z (ES+) (M+Na)+ 392.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889716B2
Source datasetuspto-grants-2014_11
ORD IDord-2335aad60be6461fa400b73fef17237e
Source noteuspto-grants-2014_11