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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2036684Generated: November 2, 2026

Trifluoroacetic acid → 2-(4-Trifluoromethylphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole

https://huagongshe.com/reaction/2036684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl 2-(4-trifluoromethylphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylateHCID 67085708—
Product2-(4-Trifluoromethylphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indoleHCID 5291297795%

Reaction Steps

The product of step A was subjected to Boc-deprotection with TFA following the procedure of Example 28, step B to give 2-(4-trifluoromethylphenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole (100 mg, 95%) as an off-white solid: 1H NMR (CDCl3, 300 MHz) δ 8.03-8.11 (m, 3H), 7.11-7.62 (m, 3H), 7.26-7.30 (m, 1H), 4.74-4.75 (m, 1H), 4.22 (br s, 1H), 3.56 (s, 3H), 3.26-3.31 (m, 1H), 2.56-2.62 (m, 1H), 1.99-2.28 (m, 3H), 1.59-1.64 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575186B2
Source datasetuspto-grants-2013_11
ORD IDord-27dcaa8022364768ac81c34b7d68d03f
Source noteuspto-grants-2013_11