1,2-addition of allyl and 2-oxo-2H-pyran-6-ylcarbonyl groups to cyclic C=N double bonds by means of organotin reagent for alkaloids synthesis; a facile synthesis of 8-oxoprotoberberine and norkeoyobirine (demethoxycarbonyloxogambirtannine)
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Yamaguchi,Otsuji,Utimoto,Kozima
p. 298 - 300
(2007/10/02)
Short stereoselective synthesis of d1-alloyohimbane and d1-epialloyohimbane
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Lounasmaa,Jokela
p. 615 - 622
(2007/10/02)
Stereoselective Addition Reactions of Chiral α-Sulfinyl Ketimine Anions with Ene Esters. Facile Asymmetric Syntheses of Indoloquinolizidine and Yohimbanoid Alkaloids
A convenient route for the construction of chiral indolizidines and yohimbanoid alkaloids from the 1,4-addition/ring-closure reactions of α-sulfinyl ketimine anions with ene esters is presented.
Hua, Duy H.,Bharathi, S. Narasimha,Takusagawa, Fusao,Tsujimoto, Atsuko,Panangadan, Jagath A. K.,et al.