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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2365391Generated: November 1, 2026

tert-butyl 7-bromo-9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylate → tert-Butyl 9-methyl-7-(2-oxo-4-(2-(pyridin-2-yl)ethyl)piperazin-1-yl)-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate

https://huagongshe.com/reaction/2365391

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-butyl 7-bromo-9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylateHCID 57950468—
Reactant4-(2-(Pyridin-2-yl)ethyl)piperazin-2-oneHCID 58093431—
Producttert-Butyl 9-methyl-7-(2-oxo-4-(2-(pyridin-2-yl)ethyl)piperazin-1-yl)-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylateHCID 6798681717.7%

Reaction Steps

tert-Butyl 7-bromo-9-methyl-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate (820 mg, 2.25 mmol) and 4-(2-(pyridin-2-yl)ethyl)piperazin-2-one (426 mg, 2.08 mmol) were reacted according to Example 2 (step f) to provide the title compound (180 mg, 16%) as a yellow oil: ESI MS m/z 490 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697700B2
Source datasetuspto-grants-2014_04
ORD IDord-ab40461999fe4b22add6ad44789a351b
Source noteuspto-grants-2014_04