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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1992499Generated: October 26, 2026

1-Piperazinecarboxylic acid, ethyl ester → 4-[2-(4-ethoxycarbonyl-piperazine-1-carbonyl)-1H-indole-5-carbonyl]-[1,4]diazepane-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/1992499

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
Reactant5-(4-tert-butoxycarbonyl-[1,4]diazepane-1-carbonyl)-1H-indole-2-carboxylic acidHCID 68535629—
Product4-[2-(4-ethoxycarbonyl-piperazine-1-carbonyl)-1H-indole-5-carbonyl]-[1,4]diazepane-1-carboxylic acid tert-butyl esterHCID 68536546—

Reaction Steps

The title compound was synthesized in analogy to example 47a), from 5-(4-tert-butoxycarbonyl-[1,4]diazepane-1-carbonyl)-1H-indole-2-carboxylic acid and 4-ethoxycarbonylpiperazine. Off-white solid. MS (m/z): 505.2 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07648979B2
Source datasetuspto-grants-2010_01
ORD IDord-9546b1754c0f4b21b86e271b5d84fe1a
Source noteuspto-grants-2010_01