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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2112514Generated: November 4, 2026

Hydrazine → 5-(2-chlorophenyl)-8-ethoxy-7-fluoro-3-methyl-1,2-dihydropyrazolo[3,4-b][1,4]benzodiazepine

https://huagongshe.com/reaction/2112514

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant1,1-Dimethoxyethyl(dimethyl)amineHCID 87835—
Reactant5-(2-chlorophenyl)-1,3-dihydro-8-ethoxy-7-fluoro-2H-1,4-benzodiazepin-2-thioneHCID 57642326—
Product5-(2-chlorophenyl)-8-ethoxy-7-fluoro-3-methyl-1,2-dihydropyrazolo[3,4-b][1,4]benzodiazepineHCID 178465777—

Reaction Steps

5-(2-chlorophenyl)-1,2-dihydro-7-fluoro-8-ethoxy-3-methyl-pyrazolo[3,4-b][1,4]benzodiazepine (IVg) was prepared by reacting 0.0016 moles of 5-(2-chlorophenyl)-1,3-dihydro-8-ethoxy-7-fluoro-2H-1,4-benzodiazepin-2-thione (IIg) with 1,1-dimethoxy-N,N-dimethyl-ethanamine and then hydrazine in a manner analogous to Example 55. MH+/Z=371.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07524840B2
Source datasetuspto-grants-2009_04
ORD IDord-80fe3ee4c3614cd3a4c162c6e519f296
Source noteuspto-grants-2009_04