Results 341 to 350 of about 14,944,148 (406)
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Total Synthesis of (-)-Rhodomollanol A.
Journal of the American Chemical Society, 2020An asymmetric approach for the first total synthesis of (-)-rhodomollanol A, a highly oxidized diterpenoid, is described. The efficient synthetic strategy features three key transfor-mations: 1) an oxidative dearomatization-induced (5+2) cy-cloaddition ...
Jianhong Gao +6 more
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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 (−)-raumacline
Chem. Commun., 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Bailey, Patrick D. +4 more
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Total synthesis of bryostatin 3
Science, 2020Stitching alkynes into bryostatin 3 The bryostatin family of marine natural products has been explored for a wide variety of pharmaceutical applications but remains challenging to source.
B. Trost +5 more
semanticscholar +1 more source
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 (+)‐Belactosin A.
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Alan, Armstrong, James N, Scutt
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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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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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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 (±)‐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 (‐)‐Gambierol.
ChemInform, 2002The first total synthesis of (-)-gambierol (1), a marine polycyclic ether toxin, has been achieved. Key features of the successful synthesis include (1) a convergent union of the ABC and EFGH ring fragments (5 and 6, respectively) via our developed B-alkyl Suzuki-Miyaura cross-coupling strategy leading to the octacyclic polyether core 4 and (2) a late ...
Haruhiko, Fuwa +3 more
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