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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1282006Generated: October 30, 2026

Sulfuric Acid → HCID 10206976, compound

https://huagongshe.com/reaction/1282006

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantHydrazineHCID 9321—
ReactantHCID 12972321HCID 12972321—
SolventEthanolHCID 702—
ProductHCID 10206976HCID 10206976—

Reaction Steps

A solution of 0.2 g (0.32 mmol) of 1-(2,4-dichlorobenzyl)-3-(S)-(4-(3-phthalimidopropyloxymethyl)piperidinylmethyl)-4-(S)-(3-thienyl)pyrrolidine (Example 20) and 0.2 mL (6.4 mmol) of hydrazine in 2 mL of ethanol was heated at 60° C. for 5 h. To the reaction mixture was added 20 mL of 10% H2SO4 and the mixture was extracted three times with ethyl acetate. The aqueous layer was brought to pH=12 by addition of 15% NaOH and extracted with ethyl acetate. The combined organic layers were dried over MgSO4, filtered and the filtrate was concentrated to give the title compound. Mass Spectrum (ESI) m/e=496 (M+1 35Cl, 35Cl), 498 (M+1 35Cl, 37Cl), and 500 (M+1 37Cl, 37Cl). [α]D=+14.9 (c=0.875, CHCl3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455548B2
Source datasetuspto-grants-2002_09
ORD IDord-8f5be84256a74134a5919d3ab7516513
Source noteuspto-grants-2002_09