Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634940Generated: October 25, 2026

2,3,5,6-Tetrafluorophenol → N-[(1-methyl-3-isobutyl-indole-2-cabonyl)cyclohexylalaninyl]-3-amino-4-oxo-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic acid, tert-butyl ester

https://huagongshe.com/reaction/634940

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3,5,6-TetrafluorophenolHCID 69858—
ReactantPotassium FluorideHCID 522689—
ReactantEthyl acetate hexaneHCID 21226206—
ReactantN-[(1-methyl-3-isobutyl-indole-2-cabonyl)cyclohexylalaninyl]-3-amino-5-bromo-4-oxo-pentanoic acid, tert-butyl esterHCID 86756366—
SolventDimethylformamideHCID 6228—
ProductN-[(1-methyl-3-isobutyl-indole-2-cabonyl)cyclohexylalaninyl]-3-amino-4-oxo-5-(2,3,5,6-tetrafluorophenyloxy)-pentanoic acid, tert-butyl esterHCID 86756365—

Reaction Steps

The titled product was prepared as described in Example 82 using N-[(1-methyl-3-isobutyl-indole-2-carbonyl)cyclohexylalaninyl]-3-amino-5-bromo-4-oxo-pentanoic acid, tert-butyl ester (50.8 mg, 0.08 mmol), potassium fluoride (12.0 mg, 0.21 mmol), and 2,3,5,6-tetrafluorophenol (13.3 mg, 0.08 mmol) in DMF (2.0 ml). TLC (hexane/EtOAc, 3/1): Rf=0.25.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06184244B2
Source datasetuspto-grants-2001_02
ORD IDord-96643832e51949ff81e8b303e1c84318
Source noteuspto-grants-2001_02