The Asymmetric Synthesis of (2S,3S)-3-N-tert-Butoxycarbonylamino-2-Hydroxy-4-Phenylbutanoic Acid: A Core Component of Protease Inhibitors

International Journal of Applied Chemistry
© 2021 by SSRG - IJAC Journal
Volume 8 Issue 2
Year of Publication : 2021
Authors : Yoshifumi Yuasa
pdf
How to Cite?

Yoshifumi Yuasa, "The Asymmetric Synthesis of (2S,3S)-3-N-tert-Butoxycarbonylamino-2-Hydroxy-4-Phenylbutanoic Acid: A Core Component of Protease Inhibitors," SSRG International Journal of Applied Chemistry, vol. 8,  no. 2, pp. 7-11, 2021. Crossref, https://doi.org/10.14445/23939133/IJAC-V8I2P103

Abstract:

(2S,3S)-3-N-tert-Butoxycarbonylamino-2-hydroxy-4-phenylbutanoic acid 1, which can serve as a chiral building block of effective aspartic protease inhibitors, could be synthesized from methyl 4-phenyl-2-chloro-3-oxobutyrate 3 by the asymmetric hydrogenation using the Ru-BINAP complex catalyst as the key step in high optical purity and in good yield.

Keywords:

Aspartic protease inhibitors, HIV-1 protease, -hydroxy--amino acid, asymmetric hydrogenation, Ru-BINAP complex catalyst.

References:

[1] Y. Hayashi, Y. Kiso., Organic Chemistry and Medical Chemistry Based on -Hydroxy--amino Acid., Yukigousei kyoukaishi, 63(6) (2005) 640 - 650.
[2] T. Kamijo, H. Harada, K. Akahane, T. Kubota,H. Umeyama, T. Ishida and Y. Kiso., Orally Potent Human Renin Inhibitors Derived from Angiotensinogen Transition State Design, Synthesis, and Mode of Interaction J., Med. Chem., 33(10) (1990) 2707 - 2714.
[3] M. Ikunaka, J Matsumoto, Y Nishimoto., A Concise Synthesis of (2S, 3S)-BocAHPBA and (R)-BocDMTA, Chiral Building Blocks for Peptide-Mimetic HIV Protease Inhibitors., Tetrahedron Asymmetry, 13(11) (2002) 1201 - 1208.
[4] a) K. E. Koenig. In Asymmetric Synthesis., Edited by J. D. Morrison. Academic Press, New York. 5(71)(1985). b) R. Noyori, and H. Takaya. BINAP: An Efficient Chiral Element for Asymmetric Catalysis Acc. Chem. Res., 23(1990) 345 - 350. c) H. Takaya and R. Noyori. In Comprehensive Organic Synthesis. Vol. 8. Edited by B. M. Trost and I. Fleming. Pergamon Press, Oxford. Chap. 3.2. (1991) 433-469. d) R. Noyori., Asymmetric Catalysis by Chiral Metal Complexe., CHEMTECH, (1992) 360 - 367. e) H. Takaya, T. Oath, R. Noyori. , In Catalytic Asymmetric Synthesis., Edited by Jim, I. VCH Publishers, New York. (1993). f) R. Noyori. In Asymmetric Catalysis in Organic synthesis. John Wiley & Sons, Inc., New York. Chap. 2,(1994). g) R. Noyori., Organometallic Ways for the Multiplication of Chirality., Tetrahedron, 50(1994) 4259 - 4292.
[5] W. Tang, and X, Zhang., New Chiral Phosphorus Ligands for Enantioselective Hydrogenation., Chem. Rev., 103(2003) 3029 - 3070, and reference cited therein.
[6] M. Kitamura, T. Okuma, H. Takamasa, and R. Noyori., A Practical Asymmetric Synthesis of Carnitine., Tetrahedron Lett., 29(1988) 1555 - 1556.
[7] a) Y. Yuasa., The Practical, Efficient, Diastereoselective Synthesis of (3R,1'S)-3-[(1'-N-Ethylamino)ethyl]pyrrolidine: A Chiral Side Chain Unit for Quinolone Type Anti-Fungus Agents., Indian J. Chem., 58B(2018) 1189 - 1193. b) Y. Yuasa. The Synthesis of Optically-Active erythro-Methylphenidate by Diastereoselective Hydrogenation Using Ru-BINAP Complex Catalyst., SSGR Int. J. Appl. Chem., 7(2) (2020)70 - 74. c) Y. Yuasa., The Asymmetric Synthesis of tert-Butyl (4R, 6R)-6-(2-aminoethyl)-2,2-dimethyl- 1,3-dioxane-4-acetate: An Important Intermediate of HMG-CoA Reductase Inhibitor., SSGR Int. J. Appl. Chem., 2020, 7, 3, pp.13 - 16.
[8] T. Ikariya, Y. Ishii, H. Kawano, T. Arai, S. Yoshikawa, and S. Akutagawa., Synthesis of Novel Chiral Ruthenium Complexes of 2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl and Their Use as Asymmetric Catalysts., J. Chem. Soc., Chem. Commun., (1985) 922-924.
[9] D. P. Wyman, and P. R. Kaufman., The Chlorination of Active Hydrogen Compounds with Sulfuryl Chloride. I. Ketones., J. Org. Chem., 29(7) (1964) 1956 - 1960.
[10] M. Bartok, and K. L. Lang. In The Chemistry of Functional Groups., The Chemistry of Ethers, Crown Ethers, Hydroxyl Groups and Their Sulphur Analogues, Chapter 14. Oxirans., Editor by S. Patai, John Wiley & Sons, (1980) 619 - 620.
[11] a) J.-H. Denis, A. E. Greene, A. A. Serra, and M.-J. Luche., An Efficient, Enantioselective Synthesis of the Taxol Side Chain J., Org. Chem., 51(1986)46-50. b) M. Fieser, and J. G. Smith, “Reagents for
Organic Synthesis, 13,24 -25.
[12] T. Ohta, Y. Tonomura, K. Nozaki, H. Takaya, and K. Mashima., Anionic Dinuclear BINAP-Ru(II) Complex: Crystal Structure of [NH2Et2][{RuCl(R)-p-MeO-binap)}2(-Cl)3] and Its Use for Asymmetric Hydrogenation., Organicmetallics, 15(1996) 1521 - 1523.