Asymmetric Synthesis of Both Enantiomers of <i>a</i><i>nti</i>-4,4,4-Trifluorothreonine and 2-Amino-4,4,4-trifluorobutanoic Acid
作者:Zhong-Xing Jiang、Ying-Ying Qin、Feng-Ling Qing
DOI:10.1021/jo0344384
日期:2003.9.1
A short and efficient enantioselective synthesis of bothenantiomers of anti-4,4,4-trifluorothreonine and 2-amino-4,4,4-trifluorobutanoic acid was successfully developed. Trifluoromethylation of benzyl-protected bromoalkene 4 provided key intermediate trifluoromethylated trans-disubstituted alkene 2 in good yield. The sequence then involved Sharpless asymmetric dihydroxylation, nucleophilic opening
SYNTHETIC APOLIPOPROTEINS, AND RELATED COMPOSITIONS METHODS AND SYSTEMS FOR NANOLIPOPROTEIN PARTICLES FORMATION
申请人:LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
公开号:US20180186860A1
公开(公告)日:2018-07-05
Synthetic apolipoproteins based on native/naturally occurring homolog proteins can be prepared using solid-phase peptide synthesis approaches combined with native chemical ligation methods to create analogs of full length apolipoproteins. The chemical synthesis is expected to allow introduction of non-natural amino acids, e.g., α,α′-dialkyl amino acids, with a periodicity that encourages both helix formation and amphipathicity. Such apolipoprotein analogs are expected to encourage, in some embodiments, facile and more complete NLP formation, enabling consideration of full spectrum of nanoparticle-based biotechnology applications ranging from therapeutic sequestration and delivery to energy/biofuel production to biopolymer production.
[EN] SYNTHETIC APOLIPOPROTEINS, AND RELATED COMPOSITIONS METHODS AND SYSTEMS FOR NANOLIPOPROTEIN PARTICLES FORMATION<br/>[FR] APOLIPOPROTÉINES SYNTHÉTIQUE, ET COMPOSITIONS, PROCÉDÉS ET SYSTÈMES ASSOCIÉS POUR LA FORMATION DE PARTICULES DE NANOLIPOPROTÉINE
申请人:L LIVERMORE NAT SECURITY LLC
公开号:WO2017044899A1
公开(公告)日:2017-03-16
Synthetic apolipoproteins based on native/naturally occurring homolog proteins can be prepared using solid-phase peptide synthesis approaches combined with native chemical ligation methods to create analogs of full length apolipoproteins. The chemical synthesis is expected to allow introduction of non-natural amino acids, e.g., α,α'-dialkyl amino acids, with a periodicity that encourages both helix formation and amphipathicity. Such apolipoprotein analogs are expected to encourage, in some embodiments, facile and more complete NLP formation, enabling consideration of full spectrum of nanoparticle-based biotechnology applications ranging from therapeutic sequestration and delivery to energy/biofuel production to biopolymer production.