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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2215931Generated: October 31, 2026

(4aS,9bR)-8-bromo-6-cyano-5-methyl-1,3,4,4a,5,9b-hexahydro-pyrido[4,3-b]indole-2-carboxylic acid tert-butyl ester → (4aS,9bR)-5-methyl-8-(3-methyl-butyl)-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole-6-carbonitrile

https://huagongshe.com/reaction/2215931

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4aS,9bR)-8-bromo-6-cyano-5-methyl-1,3,4,4a,5,9b-hexahydro-pyrido[4,3-b]indole-2-carboxylic acid tert-butyl esterHCID 58700289—
ReactantHCID 178445882HCID 178445882—
CatalystHCID 178418397HCID 178418397—
Product(4aS,9bR)-5-methyl-8-(3-methyl-butyl)-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole-6-carbonitrileHCID 58700351—

Reaction Steps

Following the general procedure for Example 127–146, the title compound was prepared (11 mg, 39%) as a light yellow oil using (4aS,9bR)-8-bromo-6-cyano-5-methyl-1,3,4,4a,5,9b-hexahydro-pyrido[4,3-b]indole-2-carboxylic acid tert-butyl ester (Example 158, 40 mg, 0.10 mmol), 3-methyl-butylzinc bromide (0.5 M in THF, 2.5 mole equivalent) and Pd(PPh3)4 (0.06 mole equivalent).: MS (ESI): 284 (base, M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07109339B2
Source datasetuspto-grants-2006_09
ORD IDord-68ee4e7d6af541968e54f055d0237c9e
Source noteuspto-grants-2006_09