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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545011Generated: October 30, 2026

Sodium Bicarbonate → 10-Bromo-2-(3,4-dimethoxy-phenylamino)-5H,7H-benzo[b]pyrimido[4,5-d]azepin-6-one

https://huagongshe.com/reaction/545011

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 66934668HCID 66934668—
ReactantN-(3,4-dimethoxyphenyl)guanidineHCID 178492306—
Product10-Bromo-2-(3,4-dimethoxy-phenylamino)-5H,7H-benzo[b]pyrimido[4,5-d]azepin-6-oneHCID 59851156—

Reaction Steps

In a manner similar to method I (NaHCO3 used instead of K2CO3), 7-bromo-4-dimethylaminomethylene-3,4-dihydro-1H-benzo[b]azepine-2,5-dione (v-k) and 1-(3,4-dimethoxyphenyl)-guanidine were converted to I-18 (74%): HRMS Calcd. for C20H17BrN4O3: 441.0562, Found 441.0548.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935694B2
Source datasetuspto-grants-2011_05
ORD IDord-a605e9e328ee40e6b0de32668563745f
Source noteuspto-grants-2011_05