Results 231 to 240 of about 1,737,350 (269)
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Total Synthesis of Siomycin A: Completion of the Total Synthesis
Chemistry – An Asian Journal, 2008AbstractThe total synthesis of siomycin A (1), a representative compound of the thiostrepton family of peptide antibiotics, was achieved by incorporating the five synthetic segments A (2), B (3), C (4), D (5), and E (6). The dehydropiperidine segment A (2) was esterified with the dihydroquinoline segment C (4), and the subsequent coupling with the β ...
Tomonori, Mori +10 more
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Total Synthesis of (±)‐Aspidophylline A
Angewandte Chemie International Edition, 2014AbstractA total synthesis of aspidophylline A, a pentacyclic akuammiline‐type monoterpene indole alkaloid, is described. The synthesis features: 1) rapid access to a fully functionalized dihydrocarbazole through the desymmetrization of readily available 2‐allyl‐2‐(o‐nitrophenyl)cyclohexane‐1,3‐dione; 2) an intramolecular azidoalkoxylation of an ...
Ren, Weiwu, Wang, Qian, Zhu, Jieping
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Total Synthesis of (+)-Astrophylline
The Journal of Organic Chemistry, 2003The first total synthesis of (+)-astrophylline (2) has been achieved, starting from readily available enantiomerically pure (+)-(1R,4S)-4-hydroxycyclopent-2-enyl acetate (11). A novel ruthenium-catalyzed ring-closing ring-opening ring-closing metathesis of carbocyclic olefins of general type 5 was the key step, providing the stereochemically well ...
Marco, Schaudt, Siegfried, Blechert
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Total Synthesis of (+)‐Alstonlarsine A
Angewandte Chemie, 2022AbstractAn enantioselective total synthesis of (+)‐alstonlarsine A (1), a monoterpenoid indole alkaloid possessing a unique pentacyclic skeleton as well as a rare biological activity, is achieved. The key step is an efficient domino sequence, comprising enamine formation followed by an inverse‐electron‐demand intramolecular dearomative Diels–Alder ...
Zorana Ferjancic +2 more
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Total Synthesis of (+)‐Belactosin A.
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Alan, Armstrong, James N, Scutt
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Angewandte Chemie, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
John C, Jewett, Viresh H, Rawal
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
John C, Jewett, Viresh H, Rawal
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Total Synthesis of Viridiofungin A.
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Kenji, Morokuma +3 more
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Total Synthesis of (±)‐Alstoscholarisine A
Angewandte Chemie, 2016AbstractThe first total synthesis of the neuroactive indole alkaloid (±)‐alstoscholarisine A is reported. The key step of the concise synthesis is an efficient domino sequence that was used to assemble the 2,8‐diazabicyclo[3.3.1]nonane core through the formation of two C−N bonds and one C−C bond in a single step.
Bihelović, Filip, Ferjančić, Zorana
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Total Synthesis of Paecilomycine A.
ChemInform, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sun-Joon, Min, Samuel J, Danishefsky
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Total Synthesis of (−)-Mersicarpine
Journal of the American Chemical Society, 2010The total synthesis of (-)-mersicarpine was achieved in 10 steps from a known ketoester. Our synthesis features an Eschenmoser-Tanabe-type fragmentation to synthesize an alkyne unit containing a quaternary carbon center, a facile construction of the indole skeleton via a combination of a Sonogashira coupling and a gold(III) catalyzed cyclization, as ...
Nakajima, Rie +3 more
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