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Beilstein J. Org. Chem. 2008, 4, No. 5, doi:10.1186/1860-5397-4-5
Graphical Abstract
Figure 1: Representative quinolizidine alkaloids from amphibians.
Figure 2: Indolizidines and quinolizidines prepared from enaminone precursors 5 and 6. The conventional numbe...
Scheme 1: Reagents: (i) H2 (7 atm), 10% Pd/C, AcOH, rt; (ii) Cl(CH2)3COCl, NaHCO3, CHCl3, reflux; (iii) KOBut...
Scheme 2: Reagents: (i) LiAlH4, THF, 0 °C to rt; (ii) MeSO2Cl, NEt3, CH2Cl2, 0 °C to rt; (iii) Raney Ni, EtOH...
Scheme 3: Reagents: (i) Br(CH2)4COCl, NaHCO3, ClCH2CH2Cl, rt; (ii) NaH, Bu4NI, DMF, rt; (iii) Lawesson's reag...
Scheme 4: Reagents: (i) LiAlH4, Et2O, 0 °C, then add (+)-2 in Et2O, rt; (ii) TBDMSCl, imidazole, DMF, rt; (ii...
Scheme 5: Reagents: (i) aq. HF (40%), MeOH, rt; (ii) Ac2O, pyridine, 0 °C to rt; (iii) Lawesson's reagent, Ph...