Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Gabriel Courchesne"'
Publikováno v:
Tetrahedron: Asymmetry. 15:3587-3590
The stereoselective acetylation of meso-decalindiols 1 and 2 by vinyl acetate in the presence of Candida antarctica lipase gave monoester (1R,4S,4aR,8aS)-5 and (1R,4S,4aR,8aS)-6 in high enantiomeric excess (ee ⩾98%). The hydrolysis of the correspon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9251604992156c65a1d5ab57d6f0118
https://doi.org/10.1016/j.tetasy.2004.10.004
https://doi.org/10.1016/j.tetasy.2004.10.004
Publikováno v:
Tetrahedron: Asymmetry. 14:2567-2571
Dolabriferol is a marine polypropionate characterized by an unusual non-contiguous carbon skeleton. The two polypropionate subunits are linked by an ester function. The acid moiety of dolabriferol (ee=97%) was synthesized in five steps and 58% overal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5699e2eb21498a5af2176c9623e1f811
https://doi.org/10.1016/s0957-4166(03)00587-1
https://doi.org/10.1016/s0957-4166(03)00587-1
Autor:
Robert Chênevert, Gabriel Courchesne
Publikováno v:
Tetrahedron: Asymmetry. 6:2093-2096
The stereoselective acetylation of meso-3-( tert -butyldimethylsiloxy)-2,4-dimethyl-1,5-pentanediol by vinyl acetate in the presence of Candida rugosa lipase in organic medium gave the corresponding (2R, 3R, 4S) mono ester in high enantiomeric purity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaf975e59809665c37dd4777c1938f61
https://doi.org/10.1016/0957-4166(95)00272-q
https://doi.org/10.1016/0957-4166(95)00272-q
Publikováno v:
Chemistry Letters. 23:93-96
We report the first asymmetric synthesis of amidinomycin, an antiviral antibiotic metabolite. Amidinomycin of high enantiomeric purity (ee 91%) was prepared from norbornylene in 8 steps. The key step is an enzymatic discrimination of enantiotopic gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93821545893e89d84de09c198061a360
https://doi.org/10.1246/cl.1994.93
https://doi.org/10.1246/cl.1994.93
Publikováno v:
ChemInform. 25
We report the first asymmetric synthesis of amidinomycin, an antiviral antibiotic metabolite. Amidinomycin of high enantiomeric purity (ee 91%) was prepared from norbornylene in 8 steps. The key step is an enzymatic discrimination of enantiotopic gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af54c24acfbcc5fa78ae137d5d786cf
https://doi.org/10.1002/chin.199425236
https://doi.org/10.1002/chin.199425236
Autor:
Gabriel Courchesne, Robert Chênevert
Publikováno v:
ChemInform. 27
The stereoselective acetylation of meso-3-( tert -butyldimethylsiloxy)-2,4-dimethyl-1,5-pentanediol by vinyl acetate in the presence of Candida rugosa lipase in organic medium gave the corresponding (2R, 3R, 4S) mono ester in high enantiomeric purity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cf4540ac0345872fbd9b9fdf44afc7b
https://doi.org/10.1002/chin.199606069
https://doi.org/10.1002/chin.199606069
Autor:
Gabriel Courchesne, Robert Chênevert
Publikováno v:
ChemInform. 28
Acetylation of 2-[4-(benzyloxy)-2-nitrophenyl]propane-1,3-diol with vinyl acetate in the presence of porcine pancreatic lipase gave the (R)-mono-acetate (ee = 92%). The (S)-mono-acetate was obtained via acetylation of the diol followed by transesteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c1b42bcd3dccbf5aaa6df496f8f5836
https://doi.org/10.1002/chin.199726264
https://doi.org/10.1002/chin.199726264
Autor:
Francois LaFlamme, Michel Couturier, Louis-Philippe Beauregard, Francis Beaulieu, Alexandre L'Heureux, Gabriel Courchesne
Publikováno v:
ChemInform. 41
Aminodifluorosulfinium tetrafluoroborate salts were found to act as efficient deoxofluorinating reagents when promoted by an exogenous fluoride source and, in most cases, exhibited greater selectivity by providing less elimination byproduct as compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fecdfe3410eaf0b8fae2788926ce389e
https://doi.org/10.1002/chin.201012049
https://doi.org/10.1002/chin.201012049
Autor:
Louis-Philippe Beauregard, Francis Beaulieu, Alexandre L'Heureux, Gabriel Courchesne, Michel Couturier, Francois LaFlamme
Publikováno v:
Organic Letters
Aminodifluorosulfinium tetrafluoroborate salts were found to act as efficient deoxofluorinating reagents when promoted by an exogenous fluoride source and, in most cases, exhibited greater selectivity by providing less elimination byproduct as compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26380924a183b7aad5b85374962aec9d
https://pubmed.ncbi.nlm.nih.gov/19799406
https://pubmed.ncbi.nlm.nih.gov/19799406
Publikováno v:
Bioorganicmedicinal chemistry. 14(15)
The stereoselective acylation of the achiral chromanedimethanol derivative 1 by vinyl acetate in the presence of Candida antarctica lipase B gave the ( S )-monoester 2 in high enantiomeric purity (ee ⩾ 98%). Enzymatic hydrolysis of diesters of comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::615f8b712f7af69269a33e27bb85bdad
https://pubmed.ncbi.nlm.nih.gov/16616508
https://pubmed.ncbi.nlm.nih.gov/16616508