77080-67-2Relevant articles and documents
Synthesis of vinca alkaloids and related compounds. Part 101: A new convergent synthetic pathway to build up the aspidospermane skeleton. Simple synthesis of 3-oxovincadifformine and 3-oxominovincine. Attempts to produce 15β-hydroxyvincadifformine
éles, János,Kalaus, Gy?rgy,Greiner, István,Kajtár-Peredy, Mária,Szabó, Pál,Szabó, Lajos,Szántay, Csaba
, p. 8921 - 8927 (2007/10/03)
A molecule with an indole skeleton, containing a latent acrylic ester function - acting as a diene - was produced from Nb-trityl-2-(hydroxy-methyl)-tryptamine and reacted with esters containing an aldehyde or aldehyde-equivalent structural unit, yielding 3-oxo-16,17-dihydro-Δ20-secodin-17-ol type intermediates from which dehydration, followed by [4+2]cycloaddition, furnished 3-oxovincadifformine and 3-oxominovincine. We also wished to apply the method to produce 15β-hydroxyvincadifformine, however, the appearance of a dimeric product with indole skeleton was observed instead of the expected cycloaddition.
Syntheses of Strychnan- and Aspidospermatan-Type Alkaloids. 9.1 The Enantioselective Generation of Tetracyclic ABCE Intermediates by a Tandem Condensation, [3,3]-Sigmatropic Rearrangement, and Cyclization Sequence
Kuehne, Martin E.,Xu, Feng
, p. 7950 - 7960 (2007/10/03)
Reactions of substituted acroleins with the tryptophan-derived benzyl 2-(benzylamino)-3-[3-[2-[(methoxycarbonyl)methyl]indolyl]]propionate gave tetracyclic hexahydro-1H-pyrrolo[2,3-d] intermediates with stereoselective placement of substituents for cycliz
Studies in biomimetic alkaloid syntheses. 6. Alternative pathways to secodines and their acyclic enamino acrylate analogues. Total syntheses of desethylibophyllidine, D-Norvincadifformine, desethylvincadifformine, 20-methyldesethylvincadifformine, and 3-oxovincadifformine
Kuehne,Matsko,Bohnert,et al.
, p. 2002 - 2009 (2007/10/02)
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