Z-ILE-NH2

Z-ILE-NH2 Property

Boiling point:

461.5±38.0 °C(Predicted)

Density 

1.124±0.06 g/cm3(Predicted)

storage temp. 

Keep in dark place,Sealed in dry,2-8°C

pka

11.17±0.46(Predicted)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Z-ILE-NH2 Chemical Properties,Usage,Production

Synthesis

11-1) Preparation of benzyl (2S,3S)-(1-amino-3-methyl-1-oxopentan-2-yl)carbamate 2.63 g (10 mmol) of (2S,3S)-2-(((benzyloxy)carbonyl)amino)-3-methylpentanoic acid was added to a 100 mL solution of dichloromethane pre-cooled to -20°C. 1.40 mL of triethylamine and 1.23 mL of tertiary chloroyl chloride were added sequentially. after 30 min, an ammonia gas bulge was passed into the reaction mixture for 30 min. The resulting precipitate was filtered and the solid was washed with 50 mL of methylene chloride. The combined organic phases were washed sequentially with 2N HCl solution (50 mL x 2) and 50 mL saturated brine. The organic layer was dried with anhydrous MgSO4 and concentrated in vacuum to give 2.49 g (2S,3S)-(1-amino-3-methyl-1-oxopentan-2-yl)carbamic acid benzyl ester (yield: 95%). 1H NMR (CDCl3) δ: 0.9 (m, 6H), 1.2 (m, 1H), 1.5 (m, 1H), 1.8 (m, 1H), 4.0 (m, 1H), 5.1 (s, 2H), 6.5 (d, 1H).

References

[1] Patent: US5587388, 1996, A
[2] Patent: EP601486, 1994, A1