89117-97-5Relevant academic research and scientific papers
Syntheses of strychnos- and aspidospermatan-type alkaloids. 5. Total syntheses of (±)-echitamidine and 20-epi- and 19-epi-20-epi-echitamidine
Kuehne,Brook,Frasier,Xu
, p. 5977 - 5982 (1994)
Intramolecular Diels-Alder reactions, at two stages in the reaction sequence, provided total syntheses of the racemate of the hypotensive alkaloid echitamidine (8) and of its C-19,20 and C-20 epimers 9a and 9b.
Synthesis of vinca alkaloids and related compounds, Part LXXXIX. Some unexpected reactions of compounds containing the D-seco-aspidospermane ring system
Kalaus, Gyoergy,Juhasz, Imre,Steinhauser, Kinga,Greiner, Istvan,Kajtar-Peredy, Maria,Brlik, Janos,Szabo, Lajos,Szantay, Csaba
, p. 205 - 219 (2007/10/03)
Interaction of the tryptamine derivative (3) with the formyl ester (4) gave (±)-20-deethyl-2,16-didehydro-14,16-bis(methoxycarbonyl)-3-phenyl-3,14- seco-20-epiaspidospermidine (7) instead of the expected acetal (6). The product of the reaction of 3 with t
Studies in biomimetic alkaloids syntheses - 9. Two total syntheses of minovincine
Kuehne,Earley
, p. 3707 - 3714 (2007/10/02)
Condensation of methyl 1,2,3,4,5,6-hexahydroazepino[4,5-b]indole-5-carboxylate with the ethylene ketal of 2-acetyl-5-chloropentanal, followed by reactions with triethylamine and aqueous acid gave minovincine. Alternatively, a condensation of the indoloaze
