Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Platynecine"'
ChemInform Abstract: Asymmetric Syntheses of (-)-Hastanecine, (-)-Turneforcidine and (-)-Platynecine
Publikováno v:
ChemInform. 47
All three diastereomers are prepared in 11 steps starting from commercially available 2,2-dimethoxyacetaldehyde.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ec368d6165300a1dde2fe15ae04e7bf
https://doi.org/10.1002/chin.201647210
https://doi.org/10.1002/chin.201647210
A synthesis of platynecine from an intermediate is described which has previously been used for the synthesis of the enantiomers of retronecine; the stereochemistry of the necine base is determined by the formation of a tricyclic amide intermediate.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4130800597424368f646aaea448c397
https://ora.ox.ac.uk/objects/uuid:147910f3-cf29-44ac-858e-eee5942fae8c
https://ora.ox.ac.uk/objects/uuid:147910f3-cf29-44ac-858e-eee5942fae8c
Publikováno v:
Tetrahedron Letters. 38:603-606
Trisubstituted allylic alcohols 13 and 14 have been converted into a single isomeric trans-oxazoline 16 via an intramolecular iodoamidation of the corresponding trichloro-acetimidates, which have been elaborated into (−)-platynecine 1 and (−)-had
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::267f82938d7177e516f38c585a23af11
https://doi.org/10.1016/s0040-4039(96)02371-4
https://doi.org/10.1016/s0040-4039(96)02371-4
Publikováno v:
Biotechnology & Biotechnological Equipment. 11:53-59
Ten pyrrolidine alkaloids were isolated and identified from three uninvestigated Bulgarian species of genus Senecio. Integerrimine N-oxide was isolated and identified as N-oxide for the first time, while 7—and 9—angeloylplatinecine were proved li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63eb6e7d1bef0efa6ca4294ef6e63a56
https://doi.org/10.1080/13102818.1997.10818917
https://doi.org/10.1080/13102818.1997.10818917
Publikováno v:
ChemInform. 28
Trisubstituted allylic alcohols 13 and 14 have been converted into a single isomeric trans-oxazoline 16 via an intramolecular iodoamidation of the corresponding trichloro-acetimidates, which have been elaborated into (−)-platynecine 1 and (−)-had
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2898f2faef2c242304bbf8ca63233c90
https://doi.org/10.1002/chin.199717221
https://doi.org/10.1002/chin.199717221
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c304ebbf4ff1f0dc7e4053143fee5c2c
https://doi.org/10.1002/chin.199722235
https://doi.org/10.1002/chin.199722235
Publikováno v:
ChemInform. 29
Necine bases of pyrrolizidine alkaloids, turneforcidine, hastanecine, and platynecine are synthesized from ethyl 1-hydroxy-2,3,5,6-tetrahydro-1H-pyrrolizine-7-carboxylate in racemic form.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ec789f7940cc484054c6b93650c820
https://doi.org/10.1002/chin.199806240
https://doi.org/10.1002/chin.199806240
Autor:
Frederick G. West, John A. Vanecko
Publikováno v:
ChemInform. 39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::723669190eae57741b74df932b414fbb
https://doi.org/10.1002/chin.200820241
https://doi.org/10.1002/chin.200820241
Publikováno v:
Bulletin of the Chemical Society of Japan. 70:2541-2543
Necine bases of pyrrolizidine alkaloids, turneforcidine, hastanecine, and platynecine are synthesized from ethyl 1-hydroxy-2,3,5,6-tetrahydro-1H-pyrrolizine-7-carboxylate in racemic form.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37f5f2211e010c64b66f8ea7c33174aa
https://doi.org/10.1246/bcsj.70.2541
https://doi.org/10.1246/bcsj.70.2541
Autor:
Frederick G. West, John A. Vanecko
Publikováno v:
ChemInform. 36
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0a138b8d98d79bf781758d5827b1600
https://doi.org/10.1002/chin.200545202
https://doi.org/10.1002/chin.200545202