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1
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33749844000
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For more recent studies towards the synthesis of phloroglucinols
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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:
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Chem. Rev.
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Ciochina, R.1
Grossman, R.B.2
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4
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65549170142
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For the synthesis of Hyperforin analogues and their biological evaluation
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(d) Mehta, G.; Bera, M. K. Tetrahedron Lett. 2009, 50, 3519. For the synthesis of Hyperforin analogues and their biological evaluation, see:
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Tetrahedron Lett.
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Mehta, G.1
Bera, M.K.2
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5
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0034062571
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(e) Verotta, L.; Appendino, G.; Jakupovic, J.; Bombardelli, E. J. Nat. Prod. 2000, 63, 412.
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J. Nat. Prod.
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Verotta, L.1
Appendino, G.2
Jakupovic, J.3
Bombardelli, E.4
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6
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0036235522
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(f) Verotta, L.; Appendino, G.; Belloro, E.; Bianchi, F.; Sterner, O.; Lovati, M.; Bombardelli, E. J. Nat. Prod. 2002, 65, 433.
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J. Nat. Prod.
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Verotta, L.1
Appendino, G.2
Belloro, E.3
Bianchi, F.4
Sterner, O.5
Lovati, M.6
Bombardelli, E.7
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7
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33847215470
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For the synthesis of designed derivatives and their biological properties
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(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:
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Bioorg. Med. Chem. Lett.
, vol.17
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Verotta, L.1
Appendino, G.2
Bombardelli, E.3
Brun, R.4
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8
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12344280271
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(h) Gurtner, M.; Simon, J. C.; Giannis, A.; Sleeman, J. P. ChemBioChem 2005, 6, 171.
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ChemBioChem
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Gurtner, M.1
Simon, J.C.2
Giannis, A.3
Sleeman, J.P.4
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9
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34447317859
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(i) Grey, C.; Kyrylenco, S.; Hennig, L.; Nguyen, L.-H. D.; Büttner, A.; Pham, H. D.; Giannis, A. Angew. Chem., Int. Ed. 2007, 46, 5219.
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(2007)
Angew. Chem., Int. Ed.
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Grey, C.1
Kyrylenco, S.2
Hennig, L.3
Nguyen, L.-H.D.4
Büttner, A.5
Pham, H.D.6
Giannis, A.7
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10
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66149104466
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For recent reviews on the biological activity of hyperforin
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(j) Rothley, M.; Schmid, A.; Thiele, W.; Schacht, V.; Plaumann, D.; Gartner, M.; Yektaoglu, A.; Bruyère, F.; Noël, A.; Giannis, A.; Sleeman, J. P. Int. J. Cancer 2009, 125, 34. For recent reviews on the biological activity of hyperforin, see:
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Int. J. Cancer
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, pp. 34
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Rothley, M.1
Schmid, A.2
Thiele, W.3
Schacht, V.4
Plaumann, D.5
Gartner, M.6
Yektaoglu, A.7
Bruyère, F.8
Noël, A.9
Giannis, A.10
Sleeman, J.P.11
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11
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33747615945
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(k) Quiney, C.; Billard, C.; Salanoubat, C.; Fourneron, J. D.; Kolb, J. P. Leukemia 2006, 20, 1519.
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(2006)
Leukemia
, vol.20
, pp. 1519
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Quiney, C.1
Billard, C.2
Salanoubat, C.3
Fourneron, J.D.4
Kolb, J.P.5
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12
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33646710898
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Medina, M. A.; Martinez-Poveda, B.; Amores-Sanchez, M.. I.; Quesada, A. R. Life Sci. 2006, 79, 105.
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Life Sci.
, vol.79
, pp. 105
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Medina, M.A.1
Martinez-Poveda, B.2
Amores-Sanchez, M.I.3
Quesada, A.R.4
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13
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0035858503
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For a first attempt on classification, of polyprenylated benzoylphloroglucinols, see: Cuesta-Rubio, O.; Velez-Castro, H.; Frontana-Uribe, B. A.; Cadena, J. Phytochemistry 2001, 57, 279.
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(2001)
Phytochemistry
, vol.57
, pp. 279
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Cuesta-Rubio, O.1
Velez-Castro, H.2
Frontana-Uribe, B.A.3
Cadena, J.4
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14
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26844495771
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For total syntheses of garsubelin. A, see: (a) Kuramochi, A.; Usada, H.; Yamatsugu, K.; Motomu, K.; Shibasaki, M. J. Am. Chem. Soc. 2005, 127, 14200.
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(2005)
J. Am. Chem. Soc.
, vol.127
, pp. 14200
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Kuramochi, A.1
Usada, H.2
Yamatsugu, K.3
Motomu, K.4
Shibasaki, M.5
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16
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34250836871
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For a total synthesis of nemorosone and clusianone
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(c) Ahmad, N. M.; Rodeschini, V.; Simpkins, N. S.; Ward, S. E.; Blake, A. J. J. Org. Chem. 2007, 72, 4803. For a total synthesis of nemorosone and clusianone, see:
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(2007)
J. Org. Chem.
, vol.72
, pp. 4803
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Ahmad, N.M.1
Rodeschini, V.2
Simpkins, N.S.3
Ward, S.E.4
Blake, A.J.5
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17
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70350198946
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(d) Tsukano, C.; Siegel, D. R.; Danishefsky, S. J. Angew Chem., Int. Ed. 2007, 46, 840.
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(2007)
Angew Chem., Int. Ed.
, vol.46
, pp. 840
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Tsukano, C.1
Siegel, D.R.2
Danishefsky, S.J.3
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18
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33845249441
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For synthesis of a type B PPAP, clusianone, see: (a) Rodeschini, V.; Ahmad, N. M.; Simpkins, N. S. Org. Lett. 2006, 8, 5283.
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(2006)
Org. Lett.
, vol.8
, pp. 5283
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Rodeschini, V.1
Ahmad, N.M.2
Simpkins, N.S.3
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19
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33846570462
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(b) Nuhant, P.; David, M.; Pouplin, T.; Marazano, C. Org. Lett. 2007, 9, 287.
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(2007)
Org. Lett.
, vol.9
, pp. 287
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Nuhant, P.1
David, M.2
Pouplin, T.3
Marazano, C.4
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21
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70350206486
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See also ref 3d
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(d) See also ref 3d.
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-
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22
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70350190864
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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.
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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.
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-
-
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23
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66149171363
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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.
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(2009)
Org. Lett.
, vol.11
, pp. 2285
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Mitasev, B.1
Porco Jr., J.A.2
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24
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70350189301
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US Patent 4,101,585, 1978
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US Patent 4,101,585, 1978.
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-
-
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25
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70350183066
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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
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-
70350209705
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-
Meťhanesulfonic ester could not be detected by TLC
-
Meťhanesulfonic ester could not be detected by TLC
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-
-
-
27
-
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70350198944
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-
See the Supporting Information for complete experimental details.
-
See the Supporting Information for complete experimental details.
-
-
-
-
28
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70350172245
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-
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
-
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70350204905
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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.
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