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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276483Generated: October 25, 2026

Ethanolamine → HCID 178445844, compound

https://huagongshe.com/reaction/276483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantL-Isoleucine, methyl esterHCID 75735—
Reactant4-Amino-2-(trifluoromethyl)benzonitrileHCID 522170—
Reactant4-Isothiocyanato-2-(trifluoromethyl)benzonitrileHCID 11615540—
Reactant(2S)-2-amino-3-methylpentan-1-olHCID 11789185—
ReactantHCID 178418790HCID 178418790—
ProductHCID 178445844HCID 178445844—

Reaction Steps

(1S)-1-(Hydroxymethyl)-2-methylbutylamine was made from (L)-isoleucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-2-methylbutanammonium chloride as described in Method B7a. 4-Cyano-3-(trifluoromethyl)aniline was converted to 4-cyano-3-(trifluoromethyl)phenyl isothiocyanate according to A2a, Step 3. The isothiocyanate was reacted with (1S)-1-(chloromethyl)-2-methylbutanammonium chloride according to Method C1a to give (4S)-2-(4-cyano-3-(trifluoromethyl)phenylimino)-4-(2-butyl)-1,3-thiazolidine. The thiazolidine was reacted with isobutyl bromide according to Method D2a to afford (4S)-2-(4-cyano-3-(trifluoromethyl)phenylimino)-4-(2-butyl)-3-isobutyl-1,3-thiazolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-fc4bf4f411864bac998806947820a712
Source noteuspto-grants-2002_03