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Volumn 11, Issue 19, 2009, Pages 4430-4433

A short biomimetic approach to the fully functionalized bicyclic framework of type A acylphloroglucinols

Author keywords

[No Author keywords available]

Indexed keywords

BICYCLO COMPOUND; DRUG DERIVATIVE; PHLOROGLUCINOL;

EID: 70350153787     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol901781n     Document Type: Article
Times cited : (32)

References (29)
  • 1
    • 33749844000 scopus 로고    scopus 로고
    • For more recent studies towards the synthesis of phloroglucinols
    • For a recent review refering to biological activity, biosynthesis, and syndietic efforts towards PPAPs, see: (a) Ciochina, R.; Grossman, R., B. Chem. Rev. 2006, 106, 3963. For more recent studies towards the synthesis of phloroglucinols, see:
    • (2006) Chem. Rev. , vol.106 , pp. 3963
    • Ciochina, R.1    Grossman, R.B.2
  • 4
    • 65549170142 scopus 로고    scopus 로고
    • For the synthesis of Hyperforin analogues and their biological evaluation
    • (d) Mehta, G.; Bera, M. K. Tetrahedron Lett. 2009, 50, 3519. For the synthesis of Hyperforin analogues and their biological evaluation, see:
    • (2009) Tetrahedron Lett. , vol.50 , pp. 3519
    • Mehta, G.1    Bera, M.K.2
  • 7
    • 33847215470 scopus 로고    scopus 로고
    • For the synthesis of designed derivatives and their biological properties
    • (g) Verotta, L.; Appendino, G.; Bombardelli, E.; Brun, R. Bioorg. Med. Chem. Lett. 2007, 17, 1544. For the synthesis of designed derivatives and their biological properties, see:
    • (2007) Bioorg. Med. Chem. Lett. , vol.17 , pp. 1544
    • Verotta, L.1    Appendino, G.2    Bombardelli, E.3    Brun, R.4
  • 21
    • 70350206486 scopus 로고    scopus 로고
    • See also ref 3d
    • (d) See also ref 3d.
  • 22
    • 70350190864 scopus 로고    scopus 로고
    • To the best of our knowledge, methods establishing all quaternary centers and oxygen functionalities, during cyclization, have been developed for type B clusianone only. For two examples, see ref 4b,c.
    • To the best of our knowledge, methods establishing all quaternary centers and oxygen functionalities, during cyclization, have been developed for type B clusianone only. For two examples, see ref 4b,c.
  • 23
    • 66149171363 scopus 로고    scopus 로고
    • For an attempt to construct the bicyclic framework of type A PPAPs, in a direct way, under oxidative conditions which, nevertheless, led to polycyclic systems, indicating the difficulty of this approach, see: Mitasev, B.; Porco, J. A., Jr. Org. Lett. 2009, 11, 2285.
    • (2009) Org. Lett. , vol.11 , pp. 2285
    • Mitasev, B.1    Porco Jr., J.A.2
  • 24
    • 70350189301 scopus 로고    scopus 로고
    • US Patent 4,101,585, 1978
    • US Patent 4,101,585, 1978.
  • 25
    • 70350183066 scopus 로고    scopus 로고
    • Cyclization attempts of unprotected colupulone 6a resulted either in messy reactions or in O-cyclization of prenyl side chains due to participation of the C-4 enol
    • Cyclization attempts of unprotected colupulone 6a resulted either in messy reactions or in O-cyclization of prenyl side chains due to participation of the C-4 enol.
  • 26
    • 70350209705 scopus 로고    scopus 로고
    • Meťhanesulfonic ester could not be detected by TLC
    • Meťhanesulfonic ester could not be detected by TLC
  • 27
    • 70350198944 scopus 로고    scopus 로고
    • See the Supporting Information for complete experimental details.
    • See the Supporting Information for complete experimental details.
  • 28
    • 70350172245 scopus 로고    scopus 로고
    • In this case, for the preparation of 15, alkylation of 7 with bromide 8g was performed in MeONa/MeOH. (method B), as method A resulted in no reaction.
    • In this case, for the preparation of 15, alkylation of 7 with bromide 8g was performed in MeONa/MeOH. (method B), as method A resulted in no reaction.
  • 29
    • 70350204905 scopus 로고    scopus 로고
    • Formation of 27 is due to deacetylation of 23, in situ Michael addition on C-3 and subsequent aldol condensation, under the harsh conditons applied. See ref 4c.
    • Formation of 27 is due to deacetylation of 23, in situ Michael addition on C-3 and subsequent aldol condensation, under the harsh conditons applied. See ref 4c.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.