Synthesis of novel C2-symmetric and pseudo C2-symmetric based diols, epoxides and dideoxy derivatives of HIV protease inhibitors
摘要:
The Julia's olefination reaction between the sulfone derivative (10) and the aldehyde (13) (both obtained from L-phenylalanine) followed by debenzylation led to the formation (2S,5S,3E)-2,5-bis-[( I,l-dimethyl ethoxy)-carbonyl]amino-l ,6-diphenylhex-3-ene (4a). Similarly (2S,5S,3E)-2,5-bis- [(1,1-dimethylethoxy)-carbonyl]amino- 1-phenyl-6-(p-methoxy)phenylhex-3-ene (4b) was also synthesised from the sulfone (10) and L-tyrosine derived aldehyde (21). These novel intermediates (4a and 4b) were subjected to epoxidation, hydrogenation, hydroboration-oxidation and dihydroxylation reactions. These modifications resulted in the synthesis of known and unknown, C-2-symmetric and pseudo-C-2-symmetric diamino-epoxides, dideoxy derivatives, diols and deoxy diols based HIV protease inhibitors. (C) 1997 Published by Elsevier Science Ltd.
Small peptide inhibitors of smooth muscle myosin light chain kinase
作者:Federico C. A. Gaeta、Laura S. Lehman de Gaeta、Timothy P. Kogan、Yat Sun Or、Carolyn Foster、Michael Czarniecki
DOI:10.1021/jm00165a013
日期:1990.3
been enhanced by the incorporation of synthetic nonnatural amino acids into the sequence. Finally, it has been demonstrated that these peptidesequences could be converted into pseudopeptides with synthetic nonpeptide subunits designed to mimicpeptide bonds, and that certain pseudopeptides retained the high-affinity inhibition of the parent pentapeptides.
Peptide mimics of the retrovirus protease polyprotein substrate bind to viral proteases and are useful in assaying for protease activity or inhibiting protease activity and in treating viral disease.
New approaches to the synthesis of trans-alkene isosteres of dipeptides
作者:Andreas Spaltenstein、Philip A. Carpino、Fumio Miyake、Paul B. Hopkins
DOI:10.1021/jo00226a007
日期:1987.8
Synthesis of a novel C2-symmetrical (2S,5S)-2,5-bis-[(1,1-dimethylethoxy)carbonylamino]-1,6-diphenylhex-3-ene: Applications in the synthesis of potential HIV protease inhibitors
作者:AV Rama Rao、Mukund K Gurjar、Shashwati Pal、Richard J Pariza、Mukund S Chorghade