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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1954416Generated: October 25, 2026

4'-(Trifluoromethyl)(1,1'-biphenyl)-2-carboxylic acid → 6-[(4'-Trifluoromethyl-biphenyl-2-carbonyl)-amino]-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/1954416

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4'-(Trifluoromethyl)(1,1'-biphenyl)-2-carboxylic acidHCID 55251—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant6-Amino-2-N-Boc-1,2,3,4-tetrahydro-isoquinolineHCID 2756371—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
Product6-[(4'-Trifluoromethyl-biphenyl-2-carbonyl)-amino]-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl esterHCID 15548823—

Reaction Steps

A 7.6 g (29 mmol) sample of 4'-trifluoromethyl-biphenyl-2-carboxylic acid, 7.1 g (29 mmol) of 6-amino-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester, 100 mg of DMAP and 6.1 g (32 mmol) of EDCl were reacted in 130 mL of methylene chloride for 12 hrs. The reaction mixture was extracted with 2×150 mL 1N HCl, 2×150 mL 1N NaOH, 150 mL water, brine and then concentrated to yield 14 g of a beige foam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06121283
Source datasetuspto-grants-2000_09
ORD IDord-9b7bb983b6444c9dad4cde0bf59f1663
Source noteuspto-grants-2000_09