Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Heiko Bernsmann"'
Autor:
Bernard Feringa, Rob Hoen, Jeroen A. F. Boogers, Johannes G. de Vries, Heiko Bernsmann, Adriaan J. Minnaard, A. Meetsma, Theodora D. Tiemersma-Wegman, André H.M. de Vries
Publikováno v:
Angewandte Chemie-International Edition, 44(27), 4209-4212. WILEY-V C H VERLAG GMBH
ChemInform, 36(44)
ChemInform, 36(44)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0be59b9b25e57c70a4a073ae2165c6dd
https://doi.org/10.1002/anie.200500784
https://doi.org/10.1002/anie.200500784
Autor:
Birgit Wibbeling, Viktor O. Rogatchov, Peter Metz, Pia Schwab, Roland Fröhlich, Heiko Bernsmann
Publikováno v:
Tetrahedron Letters. 43:4753-4756
Enantiomerically pure δ- and γ-sultams have been prepared by intramolecular [4+2] cycloaddition of N-1-phenylethyl substituted vinylsulfonamides with purely thermal activation and under high pressure. An optimized procedure for reductive debenzylat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::667ca46362e01c8daac13fcd5fafa964
https://doi.org/10.1016/s0040-4039(02)00912-7
https://doi.org/10.1016/s0040-4039(02)00912-7
Publikováno v:
Tetrahedron. 58:4451-4457
Novel THF-amino acids were efficiently synthesized from actic acid methyl esters. The conformational restriction imposed by the 2,5-cis disubstituted tetrahydrofuran moiety is apparent from their facile cyclization to give medium-sized lactams.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a31a5d381e45f885a5507fdd059a6a52
https://doi.org/10.1016/s0040-4020(02)00393-9
https://doi.org/10.1016/s0040-4020(02)00393-9
Publikováno v:
Tetrahedron Letters. 42:5377-5380
Starting from a key intermediate for the synthesis of the larger hydroxy acid constituent of pamamycin-607 ( 1 ), an efficient three-step route to the methyl ester of the smaller fragment of 1 involving a Yamaguchi lactonization with concomitant C(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c48e752c122869a4886535a7bba7d47
https://doi.org/10.1016/s0040-4039(01)01044-9
https://doi.org/10.1016/s0040-4039(01)01044-9
Publikováno v:
Tetrahedron Letters. 41:7629-7633
The enantiomerically pure methyl ester of the complete larger hydroxy acid (C(1)C(18)) of the macrodiolide antibiotic pamamycin-607 has been synthesized using a general sultone route to actic acids and analogs. The requisite N , N -dimethylamino m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::529e1ff51a0f56a91f5c1af1d49f2c41
https://doi.org/10.1016/s0040-4039(00)01308-3
https://doi.org/10.1016/s0040-4039(00)01308-3
Publikováno v:
Tetrahedron Letters. 41:4347-4351
A highly advanced enantiomerically pure C(1)–C(18) precursor of the larger fragment of the macrodiolide pamamycin-607 has been synthesized. The stereotriad C(7)–C(9) between the two heterocyclic rings of the target was generated using a diastereo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a14ed0101509d1869e485bae7705c0b
https://doi.org/10.1016/s0040-4039(00)00659-6
https://doi.org/10.1016/s0040-4039(00)00659-6
Publikováno v:
Tetrahedron Letters. 41:1721-1724
Using sultone chemistry, a short and highly enantioselective synthesis of an advanced precursor for the larger hydroxy acid moiety and of the complete smaller hydroxy acid portion of the macrodiolide antibiotic pamamycin-607 has been accomplished.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a884264eaf92a811af04a5c0788bfb58
https://doi.org/10.1016/s0040-4039(00)00022-8
https://doi.org/10.1016/s0040-4039(00)00022-8
Publikováno v:
ChemInform. 31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16c6a060e6554eeb404fb5e3368dd3d7
https://doi.org/10.1002/chin.200025230
https://doi.org/10.1002/chin.200025230
Publikováno v:
ChemInform. 31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd54140fd5fd73526806fbc8f9352be3
https://doi.org/10.1002/chin.200035213
https://doi.org/10.1002/chin.200035213
Publikováno v:
ChemInform. 32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1253aaea0c7204fb5c00ba80dcaf7d40
https://doi.org/10.1002/chin.200144236
https://doi.org/10.1002/chin.200144236