Results 281 to 290 of about 10,668,490 (318)

Total synthesis of (−)-raumacline

Chem. Commun., 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Bailey, Patrick D., Clingan, Paul D., Mills, Timothy J., Price, Richard A., Pritchard, Robin G.   +4 more
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Total Synthesis of (+)-Astrophylline

The Journal of Organic Chemistry, 2003
The 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 (+)‐Belactosin A.

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Alan, Armstrong, James N, Scutt
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Total Synthesis of (±)‐Alstoscholarisine A

Angewandte Chemie, 2016
AbstractThe 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, 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.
Sun-Joon, Min, Samuel J, Danishefsky
openaire   +2 more sources

Total Synthesis of (+)‐Alstonlarsine A

Angewandte Chemie, 2022
AbstractAn 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, Andrej Kukuruzar, Filip Bihelovic   +2 more
openaire   +4 more sources

Total synthesis of amurine

Tetrahedron Letters, 1968
The diazotisation of 6,7-dimethoxy- and 7-ethoxy-6-methoxy-1-(2-amino-4,5-methylenedioxybenzyl)-1,2,3,4-tetrahydro-2-methylisoquinoline (XII) and (XV), followed by thermal decomposition, gave amurine (Ib), as a result of which Dopke's structure for the alkaloid was proved to be correct.
T, Kametani, K, Fukumoto, T, Sugahara
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Total Synthesis of (−)-Mersicarpine

Journal of the American Chemical Society, 2010
The 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, Ogino, Tsuyoshi, Yokoshima, Satoshi, Fukuyama, Tohru   +3 more
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Total Synthesis of (‐)‐Strychnine.

ChemInform, 2004
Total synthesis of (-)-strychnine is described. Notable features of our synthesis include (1) palladium-catalyzed coupling of the indole and vinyl epoxide moieties, (2) synthesis of the nine-membered cyclic amine derivative from the diol precursor in a one-pot procedure, and (3) transannular cyclization of the nine-membered cyclic amine.
Yosuke, Kaburagi, Hidetoshi, Tokuyama, Tohru, Fukuyama   +2 more
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Total Synthesis of UCS1025A.

ChemInform, 2005
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.
Tristan H, Lambert, Samuel J, Danishefsky   +1 more
openaire   +2 more sources