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Beilstein J. Org. Chem. 2020, 16, 2769–2775, doi:10.3762/bjoc.16.227
Graphical Abstract
Scheme 1: Examples of (a) bioactive compounds bearing an α-methylene-γ-butyrolactone structure, (b) syntheses...
Figure 1: Syntheses of 3b–o via electrophilic amide allylation of γ-phenylthio lactams. Reactions were carrie...
Scheme 2: Syntheses of N-phenyl and N-alkyl-substituted spirolactams (two-step yields from 3).
Figure 2: Cytotoxicity of spirolactams on P388 cells (IC50 values).
Beilstein J. Org. Chem. 2012, 8, 1831–1838, doi:10.3762/bjoc.8.210
Figure 1: Examples of naturally occurring iminosugars.
Figure 2: The chemical structures of (+)-batzellasides A–C (1a–c).
Scheme 1: Our previous approach to (+)-batzellaside B and retrosynthetic analysis for the new synthetic strat...
Scheme 2: Reagents and conditions: (a) see [22]; (b) MeONa, MeOH, rt; 98%; (c) (i) p-TsOH, MeOH, rt; (ii) BF3·Et2...
Scheme 3: Reagents and conditions: (a) (i) K2CO3, MeOH, rt; (ii) TBSCl, Et3N, CH2Cl2, rt; (iii) BnBr, NaH, Bu4...