Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Elfriede Zarbl"'
Autor:
Frank Wuggenig, Wolfgang Lindner, Elfriede Zarbl, Biljana Peric Simov, Friedrich Hammerschmidt, Michael Lämmerhofer
Publikováno v:
European Journal of Organic Chemistry. 2002:1139-1142
Treatment of the culture broth of fosfomycin (1) producing Streptomyces fradae with ammonia gives 2−3% of the C-1 epimeric compound 5, as well as the known (1R,2R)-2-amino-1-hydroxypropylphosphonic acid (3) derived from fosfomycin. The configuratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc301a4d2679e69fe0b6c16d46675f34
https://doi.org/10.1002/1099-0690(200204)2002:7<1139::aid-ejoc1139>3.0.co
https://doi.org/10.1002/1099-0690(200204)2002:7<1139::aid-ejoc1139>3.0.co
Publikováno v:
Journal of Separation Science. 24:706-716
This study evaluates how enantioselectivity values for the separation of chiral N-derivatized amino acids achieved in non-aqueous ion-pair CE with cinchona alkaloid derived chiral counter-ions are related quantitatively to those obtained in enantiose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00d2a6ac2f02043f574d887fa6526b7d
https://doi.org/10.1002/1615-9314(20010901)24:9<706::aid-jssc706>3.0.co
https://doi.org/10.1002/1615-9314(20010901)24:9<706::aid-jssc706>3.0.co
Publikováno v:
Journal of Chromatography A. 892:509-521
The potential of tert.-butylcarbamoylquinine as chiral selector (SO) added to a non-aqueous background electrolyte for the capillary electrophoretic separation of the enantiomers of N-derivatized amino acids (selectands, SAs) is evaluated. Separation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::224f4567f23cf7b83843d7d08a766be8
https://doi.org/10.1016/s0021-9673(00)00172-2
https://doi.org/10.1016/s0021-9673(00)00172-2
Publikováno v:
Tetrahedron: Asymmetry. 11:2955-2964
Diisopropyl 2-azido-1-acetoxyethylphosphonate (±)- 7 was hydrolysed with high enantioselectivity by lipase SP 524 to give α-hydroxyphosphonate ( S )-(−)- 6 and ester ( R )-(−)- 7 , which was saponified to give ( R )-(+)- 6 . The two α-hydroxyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2afaa72108e1de98ab2b2ccf44be759b
https://doi.org/10.1016/s0957-4166(00)00261-5
https://doi.org/10.1016/s0957-4166(00)00261-5
Autor:
Michael Lämmerhofer, Ernst Tobler, Frantisek Svec, Jean M. J. Fréchet, Elfriede Zarbl, Wolfgang Lindner
Publikováno v:
Electrophoresis. 24(17)
A new chiral monomer derived from cinchona alkaloid, namely O-9-(tert-butylcarbamoyl)-11-[2-(methacryloyloxy)ethylthio]-10,11-dihydroquinine 1, was employed for the preparation of enantioselective monolithic capillary columns by an in situ copolymeri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63c48a6735ffa8f818dc504a69cffd35
https://pubmed.ncbi.nlm.nih.gov/12973802
https://pubmed.ncbi.nlm.nih.gov/12973802
Autor:
Guiseppe Cannazza, Carlo Parenti, Wolfgang Lindner, Anna Woschek, Friedrich Hammerschmidt, Michael Lämmerhofer, Elfriede Zarbl
Novel enantioselective silica-supported strong and weak cation exchange (SCX and WCX) materials (3.5 μm particles) based on enantiomerically pure N-(4-allyloxy-3,5-dichlorobenzoyl)-2-amino-3,3-dimethylbutanesulfonic acid and corresponding phosphonic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c06c81d5c72752ef68da67ba12ca100
https://hdl.handle.net/11380/583847
https://hdl.handle.net/11380/583847
Publikováno v:
Electrophoresis. 22(15)
A stereoselective ion-pair nonaqueous capillary electrophoresis (NACE) method employing the partial filling technique with N-derivatized amino acids, e.g., (R)- and (S)-3,5-dinitrobenzoyl-leucine (DNB-Leu), as chiral selector for the separation of "p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a016e95b1d0ac98ec5df62fe79128bce
https://pubmed.ncbi.nlm.nih.gov/11589294
https://pubmed.ncbi.nlm.nih.gov/11589294
Autor:
Wolfgang Lindner, Biljana Peric Simov, Michael Lämmerhofer, Elfriede Zarbl, Friedrich Hammerschmidt
Publikováno v:
Electrophoresis. 22(6)
A stereoselective nonaqueous capillary electrophoresis (CE) method utilizing O-(tert-butylcarbamoyl) quinine as chiral ion-pair agent and additive to the non aqueous background electrolyte was evaluated for the simultaneous separation of the enantiom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a16f60cab7dca996d3f2de8115a800f
https://pubmed.ncbi.nlm.nih.gov/11358145
https://pubmed.ncbi.nlm.nih.gov/11358145
Publikováno v:
Electrophoresis; May2003, Vol. 24 Issue 10, p1668-1679, 12p