Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sergio Crippa"'
Publikováno v:
Tetrahedron. 70:3994-4001
A simple, efficient and general two step procedure, through a sequential Ugi reaction followed by a Bischler–Napieralski/heterocyclization tandem closure, to give novel 6,11-dihydro-5H-imidazo[1′,5′:1,2]pyrido[3,4-b]indol-2-ium salt derivatives
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::623a9bd57807eb753938c5cccabfdcbe
https://doi.org/10.1016/j.tet.2014.04.081
https://doi.org/10.1016/j.tet.2014.04.081
Autor:
Sergio Crippa, Bruno Danieli, Giovanna Pressi, Anacleto Minghetti, Fabiana Antognoni, Ferruccio Poli, Roberto Dal Toso, Nicoletta Crespi Perellino
Publikováno v:
Fitoterapia. 82:950-954
3,5-O-dicaffeoyl-4-O-malonilquinic acid (1) (irbic acid) has been isolated for the first time from cell cultures of Centella asiatica and till now it has never been reported to be present in the intact plant. Evidence of its structure was obtained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b424548cd79c7209367deb7ed8f22f0
https://doi.org/10.1016/j.fitote.2011.05.008
https://doi.org/10.1016/j.fitote.2011.05.008
Autor:
Andrea Virdis, Alessandro Sacchetti, Alessandra Silvani, Daniele Passarella, Bruno Danieli, Sergio Crippa, Giordano Lesma
Publikováno v:
Tetrahedron. 60:6437-6442
A ruthenium-catalyzed ring opening–ring closing metathesis reaction serves as the key step in the stereoselective synthesis of a new enantiopure 2-substituted-4,5-dehydropiperidine skeleton, a valuable intermediate for the synthesis of piperidine a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14985f6498a0c5de4e8455b994b21841
https://doi.org/10.1016/j.tet.2004.06.051
https://doi.org/10.1016/j.tet.2004.06.051
Publikováno v:
ChemInform. 45
A simple, efficient and general two step procedure, through a sequential Ugi reaction followed by a Bischler–Napieralski/heterocyclization tandem closure, to give novel 6,11-dihydro-5H-imidazo[1′,5′:1,2]pyrido[3,4-b]indol-2-ium salt derivatives
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5231d00dc822bfae77bd2c3ee7e98e4
https://doi.org/10.1002/chin.201445174
https://doi.org/10.1002/chin.201445174
Publikováno v:
Fitoterapia. 75(5)
Two new compounds, 10-O-beta-D-glucopyranosyl aloenin (4) and 8-C-beta-D-glucopyranosyl-7-O-methyl-(R)-aloesol (6), were isolated from a commercial sample of Kenya aloe together with the known products aloenin (2), aloenin 2'-p-coumaroyl ester (3), a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd908d1c4838fbb73a02494cbd7aec4a
https://pubmed.ncbi.nlm.nih.gov/15261393
https://pubmed.ncbi.nlm.nih.gov/15261393
Autor:
Fiorella Meneghetti, Giordano Lesma, Sergio Crippa, Manuele Musolino, Alessandra Silvani, Alessandro Sacchetti, Paola Giovanelli, Roberto Cecchi
Publikováno v:
Organic & Biomolecular Chemistry. 10:9004
We report here a two step efficient route for the synthesis of 1,2,3,4-tetrahydro-β-carboline (THBC)-based tetracyclic peptidomimetics from a Ugi 4-CR/Pictet-Spengler reaction sequence. Suitably N-protected 2-aminoacetaldehyde was for the first time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::126bbe24d9ea06d0e3cbda53b779e587
https://doi.org/10.1039/c2ob26301g
https://doi.org/10.1039/c2ob26301g
Autor:
Sergio Crippa, Paola Cairoli, Carlo F. Morelli, Paolo Manitto, Giovanna Speranza, Daniela Monti
Publikováno v:
Natural Product Communications. 1:1934578X0600101
A new naphthalene O,O,O-triglycoside, kenyaloside (1), was isolated from the dried exudate of Kenyan Aloe species, a bittering and laxative agent. Its structure was established by combined spectral and chemical methods as 1-(β-D-glucopyranosyloxy)-8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b5c843593628a38e699bb2484ed1cf3
https://doi.org/10.1177/1934578x0600101203
https://doi.org/10.1177/1934578x0600101203
Publikováno v:
Journal of Chemical Research. :160
1 H and 13 C NMR spectra were obtained for a series of sixteen paramagnetic complexes of general formula [CoX 2 LO 2 ], where X is Cl or Br and L is a methylpyridine (picoline) or a dimethylpyridine (lutidine); use of inverse NMR and heteronuclear co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28b2c9c0181cf1c6091f22dff1eb2ba7
https://doi.org/10.1039/a608450h
https://doi.org/10.1039/a608450h
Autor:
Sergio Crippa, Vittorio Vecchietti, Giordano Lesma, Giovanni Palmisano, Daniele Passarella, Bruno Danieli
Publikováno v:
Scopus-Elsevier
Four natural N-methylindolines have been isolated from the roots of Vinca sardoa (Stearn) Pignati. They are ent-N(1)-methyl-14,15-didehydroaspidospermidine (7),N(1)-methyl-14,15-didehydroaspidofractinine (10), N(1)-methylaspidofractinine (11) and N(1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59645b0e1b662fb36f4c6c3ccdf97fbe
http://www.scopus.com/inward/record.url?eid=2-s2.0-0001477415&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0001477415&partnerID=MN8TOARS
