7537-05-5Relevant articles and documents
Total synthesis and biological evaluation of an antifungal tricyclic o-hydroxy-p-quinone methide diterpenoid
Huang, Jinhua,Foyle, Dylan,Lin, Xiaorong,Yang, Jiong
, p. 9166 - 9173 (2013)
A convergent route has been developed to synthesize an antifungal tricyclic o-hydroxy-p-quinone methide diterpenoid and analogues. A Li/naphthalene- mediated reductive alkylation was employed for coupling β-cyclocitral and the corresponding benzyl chloride, while a BBr3-mediated one-pot bis-demethylation and intramolecular Friedel-Crafts alkylation was used to assemble the tricyclic molecular skeleton. The structure-activity relationship of the diterpenoid was assessed on the basis of antiproliferation assays of the natural product and analogues against strains of pathogenic yeasts and filamentous fungi.
PHOTOREACTION OF PHTHALIMIDES POSSESSING AN ORTHO-METHYLPHENYL GROUP IN THEIR N-SIDE CHAIN. SYNTHESIS OF TETRACYCLIC NITROGEN HETEROCYCLES
Machida, Minoru,Nakamura, Mayumi,Oda, Kazuaki,Takechi, Haruko,Ohno, Kosei,et al.
, p. 2683 - 2690 (2007/10/02)
Upon irradiation phthalimides (5 and 8) possesing o-methylphenyl group in their N-side chain gave mainly the tetracyclic ring systems (9 and 10).It was shown that the photocyclization occurs at ε- or ζ-position across the carbons of the benzene ring (B-ring).