160231-69-6Relevant academic research and scientific papers
Preclinical Pharmacology and Pharmacokinetics of GW433908, a Water-Soluble Prodrug of the Human Immunodeficiency Virus Protease Inhibitor Amprenavir
Furfine, Eric S.,Baker, Christopher T.,Hale, Michael R.,Reynolds, David J.,Salisbury, Jo A.,Searle, Andy D.,Studenberg, Scott D.,Todd, Dan,Tung, Roger D.,Spaltenstein, Andrew
, p. 791 - 798 (2004)
GW433908 is the water-soluble, phosphate ester prodrug of the human immunodeficiency virus type 1 protease inhibitor amprenavir (APV). A high-yield synthesis of GW433908 is achieved by phosphorylation of the penultimate precursor of APV with phosphorous o
PROCESS FOR SYNTHESIS OF SYN AZIDO EPOXIDE AND ITS USE AS INTERMEDIATE FOR THE SYNTHESIS OF AMPRENAVIR and SAQUINAVIR
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, (2015/02/18)
Disclosed herein is a novel route of synthesis of syn azide epoxide of formula 5, which is used as a common intermediate for asymmetric synthesis of HIV protease inhibitors such as Amprenavir, Fosamprenavir, Saquinavir and formal synthesis of Darunavir an
PROCESS FOR PREPARATION OF SUBSTANTIALLY PURE FOSAMPRENAVIR CALCIUM AND ITS INTERMEDIATES
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Paragraph 0051, (2013/07/19)
The present invention relates to fosamprenavir calcium (Ia) substantially free of isomer impurity, (3R) tetrahydro -3 -furanyl(1S,2R)-3-[[(4-aminophenyl)sulfonyl](isobutyl)amino]-1-benzyl-2-(phosphonooxy)propyl carbamate (Ib), and its process for preparat
Enantioselective synthesis of HIV protease inhibitor amprenavir via Co-catalyzed HKR of 2-(1-azido-2-phenylethyl)oxirane
Gadakh, Sunita K.,Santhosh Reddy,Sudalai, Arumugam
, p. 898 - 903 (2012/09/22)
A short and efficient enantioselective synthesis of the HIV protease inhibitor amprenavir 1 (99% ee) as well as a formal synthesis of saquinavir 3 have been achieved in high enantiomeric purity starting from commercially available materials. Our strategy mainly comprises a Co-catalyzed two-stereocentred hydrolytic kinetic resolution (HKR) of racemic 2-(1-azido-2-phenylethyl)oxirane as the chirality inducing step. Also presented is a concise synthesis of (S)-3-hydroxytetrahydrofuran 4, the key structural feature, in high enantiomeric purity (98% ee).
PROCESS FOR PREPARATION OF SUBSTANTIALLY PURE FOSAMPRENAVIR CALCIUM AND ITS INTERMEDIATES
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Page/Page column 14, (2012/03/27)
The present invention relates to fosamprenavir calcium (la) substantially free of isomer impurity, (3R) tetrahydro-3-furanyl(1S,2R)-3-[[(4-aminophenyl) sulfonyl] (isobutyl) amino]- 1-benzyl-2-(phosphonooxy)propyl carbamate (lb), and its process for prepar
New approaches to the industrial synthesis of HIV protease inhibitors
Honda, Yutaka,Katayama, Satoshi,Kojima, Mitsuhiko,Suzuki, Takayuki,Kishibata, Naomi,Izawa, Kunisuke
, p. 2061 - 2070 (2007/10/03)
Efficient and industrially applicable synthetic processes for precursors of HIV protease inhibitors (Amprenavir, Fosamprenavir) are described. These involve a novel and economical method for the preparation of a key intermediate, (3S)-hydroxytetrahydrofuran, from L-malic acid. Three new approaches to the assembly of Amprenavir are also discussed. Of these, a synthetic route in which an (S)-tetrahydrofuranyloxy carbonyl is attached to L-phenylalanine appears to be the most promising manufacturing process, in that it offers satisfactory stereoselectivity in fewer steps.
Novel prodrug approach to amprenavir-based HIV-1 protease inhibitors via O→N acyloxy migration of P1 moiety
Kazmierski, Wieslaw M.,Bevans, Patricia,Furfine, Eric,Spaltenstein, Andrew,Yang, Hanbiao
, p. 2523 - 2526 (2007/10/03)
We have developed a new approach to prodrugs, which utilizes a pH-induced intramolecular O→N migration of an acyloxy group in carbonate moiety to a free amino moiety at neutral pH. This method is exemplified by facile rearrangement of highly water-soluble prodrug 3 to carbamate 4, a close analogue of HIV-1 protease inhibitor Amprenavir. The O→N acyloxy migration is unprecedented in the context of prodrugs and it enables a high atom economy due to recycling of the 'pro' moiety.
Synthesis of a chiral aziridine derivative as a versatile intermediate for HIV protease inhibitors.
Kim,Bae,So,Yoo,Chang,Lee,Kang
, p. 2349 - 2351 (2007/10/03)
[reaction: see text] Chiral aziridine derivative 1 was prepared from D-tartaric acid. This compound could be utilized as a common intermediate for the synthesis of hydroxyethylamine class HIV protease inhibitors such as saquinavir, amprenavir, or nelfinavir.
