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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1182857Generated: November 2, 2026

Sodium ethoxide → 7-bromo-4-ethoxy-2-(4-piperidyl)-5H-pyrimido[5,4-b]indole

https://huagongshe.com/reaction/1182857

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
Reactant7-bromo-4-chloro-2-(4-piperidyl)-5H-pyrimido[5,4-b]indoleHCID 86650199—
SolventWaterHCID 962—
Product7-bromo-4-ethoxy-2-(4-piperidyl)-5H-pyrimido[5,4-b]indoleHCID 66863542—

Reaction Steps

300 mg (0.82 mmol) 7-bromo-4-chloro-2-(4-piperidyl)-5H-pyrimido[5,4-b]indole was mixed with an excess of 2 M NaOEt and kept at reflux for 2 h. Then, water was added and the solvent was removed in vacuo. Following LC (CH2Cl2/MeOH, 0-50%), 160 mg (52%) of the title substance was obtained ESI-MS [m/z]: 375, 377 [M+H]+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08664233B2
Source datasetuspto-grants-2014_03
ORD IDord-245c04e82887444ba9e66b8a2ef82225
Source noteuspto-grants-2014_03