L-Homophe-OH Property

Melting point:

>300 °C(lit.)

alpha 

45 º (C=1, 3N HCl 19 ºC)

Boiling point:

311.75°C (rough estimate)

Density 

1.1248 (rough estimate)

refractive index 

44 ° (C=1, 3mol/L HCl)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

Soluble in dilute aqueous acid.

pka

2.32±0.10(Predicted)

form 

Solid

color 

White to Off-White

InChI

InChI=1/C10H13NO2/c11-9(10(12)13)7-6-8-4-2-1-3-5-8/h1-5,9H,6-7,11H2,(H,12,13)/t9-/s3

InChIKey

JTTHKOPSMAVJFE-VIFPVBQESA-N

SMILES

C(O)(=O)[C@H](CCC1=CC=CC=C1)N |&1:3,r|

CAS DataBase Reference

943-73-7(CAS DataBase Reference)

Safety

Hazard Codes 

Xi

Safety Statements 

22-24/25

WGK Germany 

3

HS Code 

29224999

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

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

P280Wear protective gloves/protective clothing/eye protection/face protection.

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

L-Homophe-OH Chemical Properties,Usage,Production

Description

L-Homophenylalanine is an amino acid derivative. It has been extensively used in the pharmaceutical industry as a precursor for production of angiotensin-converting enzyme (ACE) inhibitor: enalapril, delapril, quinapril and ramipril, which possesses significant clinical application in the management of hypertension and congestive heart failure (CHF). It acts as an anti-tumor reagent.

References

Hwang, J. Y., et al. "Simultaneous synthesis of 2-phenylethanol and L-homophenylalanine using aromatic transaminase with yeast Ehrlich pathway." Biotechnology & Bioengineering 102.5(2009):1323-9.
Ahmad, A. L., P. C. Oh, and S. R. Abd Shukor. "Sustainable biocatalytic synthesis of L-homophenylalanine as pharmaceutical drug precursor."Biotechnology Advances 27.3(2009):286-296.
https://www.alfa.com/en/catalog/H27295/

Application

L-homophenylalanine is used almost exclusively as single stereoisomer in pharmaceutical drug production. L-homophenylalanine as a common building block, due to the presence of L-homophenylalanine moiety as the central pharmacophore unit. L-homophenylalanine is also an important chiral intermediate to synthesize a variety of novel pharmaceuticals including β-lactam antibiotics, acetylcholinesterase inhibitor and neutral endopeptidace (NEP) inhibitor which retained their status as major contributors to human health preservation. L-homophenylalanine acts as a precursor for the synthesis of NEP inhibitors, which complements the effects of ACE inhibitors when used simultaneously, potentiates the outcome in the management of hypertension and congestive heart failure[1].

Chemical Properties

White Solid

Uses

L-Homophenylalanine is used as a precursor in the pharmaceutical industry for the production of angiotensin-converting enzyme (ACE) and R-(-)-Homophenylalanin-ethylester. It is also involved in the synthesis of NEPA [(S,S)-N-(1-Ethoxycarbonyl-3-phenylpropyl)alanine], which is a key intermediate to prepare the ACE-inhibitors: enalapril, delapril, quinapril and ramipril. It acts as an anti-tumor reagent.

Uses

Antitumor agent.

Definition

ChEBI: A non-proteinogenic L-alpha-amino acid that is an analogue of L-phenylalanine having a 2-phenylethyl rather than a benzyl side-chain.

Production Methods

Asymmetric reduction of prochiral ketone remains one of the most investigated methods to date for production of chiral L-homophenylalanine. One of the most established method for synthesizing L-homophenylalanine on a laboratory scale was carried out via enzyme-catalyzed asymmetric synthesis of keto acids. In this method, prochiral ketone was converted via reductive amination to enantiopure products with bulky side chains by addition of biocatalysts such as L-homophenylalanine dehydrogena. in the presence of cofactor. L-phenylalanine dehydrogenase is by and large preferred as it has mainly a catabolic function and accepts a wide variety of keto acids as substrates hence it is generally employed in the synthesis of L-homophenylalanine which carries very bulky side chains[1].

References

[1] Ahmad A, et al. Sustainable biocatalytic synthesis of L-homophenylalanine as pharmaceutical drug precursor. Biotechnology Advances, 2009; 27: 286-296.