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3
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0032485365
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For a timely and comprehensive review see: Hou, X. L.; Cheung, H. Y.; Hon, T. Y.; Kwan, P. L.; Lo, T. H.; Tong, S. Y.; Wong, H. N. C. Tetrahedron 1998, 54, 1955-2020.
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0006156097
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Ircinins: (a) Cimino, G.; De Stefano, S.; Minale, L. Tetrahedron 1972, 28, 5983-5991.
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Tetrahedron
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Cimino, G.1
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5
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0000507144
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(b) Cimino, G.; De Stefano, S.; Minale, L.; Fattorusso, E. Tetrahedron 1972, 28, 333-341.
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Cimino, G.1
De Stefano, S.2
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6
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0025605643
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(c) De Giulio, A.; De Rosa, S.; Di Vincenzo, G.; Strazzullo, G.; Zavodnik, N. J. Nat. Prod. 1990, 53, 1503-1507.
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(d) De Rosa, S.; Milone, A.; De Guilio, A.; Crispino, A.; Iodice, C. Nat. Prod. Lett. 1996, 8, 245-251.
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8
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0028264927
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(e) See also: Capon, R. J.; Dargaville, T. R.; Davis, R. Nat. Prod. Lett. 1994, 4, 51-56.
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Capon, R.J.1
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9
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0029658457
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(f) Cholbi, R.; Ferrándiz, M. L.; Terencio, M. C.; De Rosa, S.; Alcaraz, M. J.; Payá, M. Naunyn-Schmiedeberg's Arch. Pharmacol. 1996, 354, 677-683.
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Cholbi, R.1
Ferrándiz, M.L.2
Terencio, M.C.3
De Rosa, S.4
Alcaraz, M.J.5
Payá, M.6
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10
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0029857250
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(a) Hippospongins: Rochfort, S. J.; Atkin, D.; Hobbs, L.; Capon, R. J. J. Nat. Prod. 1996, 59, 1024-1028.
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Rochfort, S.J.1
Atkin, D.2
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Capon, R.J.4
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11
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0002812940
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(b) Spongionellins: Kato, Y.; Fusetani, N.; Matsunaga, S.; Hashimoto, K. Chem. Lett. 1985, 1521-1524.
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12
-
-
0017091787
-
-
Note that ircinin-4 (2) contains 21 (!) C-atoms. This raises the question whether its biosynthesis proceeds by degradation of a sesterterpene or by addition of a C-1 unit to a diterpenoid precursor. Arguments in favor of the former possibility are launched in: Minale, L.; Cimino, G.; De Stefano, S.; Sodano, G. Fortschritte der Chemie Organischer Naturstoffe 1976, 33, 1-72.
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Minale, L.1
Cimino, G.2
De Stefano, S.3
Sodano, G.4
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13
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0032569211
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See i. a.: (a) Fürstner, A.; Szillat, H., Gabor, B.; Mynott, R. J. Am. Chem. Soc. 1998, 120, 8305-8314.
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Fürstner, A.1
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0028076925
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(c) Fürstner, A.; Hupperts, A.; Ptock, A.; Janssen, E. J. Org. Chem. 1994, 59, 5215-5229.
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Fürstner, A.1
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16
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0042379197
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Fürstner, A.; Ernst, A.; Krause, H.; Ptock, A. Tetrahedron 1996, 52, 7329-7344.
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Fürstner, A.1
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Ptock, A.4
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17
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0028829479
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(e) Fürstner, A., Weintritt, H.; Hupperts, A. J. Org. Chem. 1995, 60, 6637-6641.
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Fürstner, A.1
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19
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0031575590
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Uenishi, J.; Kawahama, R.; Tanio, A.; Wakabayashi, S.; Yonemitsu, O. Tetrahedron 1997, 53, 2439-2448.
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Uenishi, J.1
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Yonemitsu, O.5
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20
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0000422811
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For leading references on Pd(0) catalyzed reactions of vinyloxiranes see: (a) Tsuji, J.; Kataoka, H.; Kobayashi, Y. Tetrahedron Lett. 1981, 22, 2575-2578.
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Tsuji, J.1
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-
24
-
-
0344211417
-
-
note
-
Compounds 9-12 are obtained as mixtures of stereoisomers. Since all of them converge into product 6, the synthesis depicted in Scheme 4 was carried out with these mixtures and no attempts were made to isolate the individual compounds.
-
-
-
-
25
-
-
0001498242
-
-
For related furan syntheses see: (a) Cyclization of γ-hydroxy-α,β-unsaturated aldehydes formed in situ by reduction of γ-hydroxy-α,β-unsaturated nitriles: Mandai, T.; Hashio, S.; Goto, J.; Kawada, M. Tetrahedron Lett. 1981, 22, 2187-2190.
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Mandai, T.1
Hashio, S.2
Goto, J.3
Kawada, M.4
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33744586503
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Miyashita, N.; Yoshikoshi, A.; Grieco, P. A. J. Org. Chem. 1977, 42, 3772-3774.
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28
-
-
0345073643
-
-
note
-
4): calcd. 344.19876; found 344.19637.
-
-
-
-
29
-
-
0345073641
-
-
note
-
2 = 0.143. The complete set of data has been deposited at the Cambridge Crystallographic Data Center, Cambridge, U.K., under the deposition number CCDC 103522.
-
-
-
-
32
-
-
0040552001
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(b) Corey, E. J.; Yamamoto, H.; Herron, D. K., Achiwa, K. J. Am. Chem. Soc. 1970, 92, 6635-6636.
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Corey, E.J.1
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84987519609
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(d) Schlosser, M.; Christmann, F. K.; Piskala, A.; Coffinet, D. Synthesis 1971, 29-31.
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Schlosser, M.1
Christmann, F.K.2
Piskala, A.3
Coffinet, D.4
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37
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0028064765
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Yu, J.; Cho, H.-S.; Chandrasekhar, S.; Falck, J. R., Mioskowski, C. Tetrahedron Lett. 1994, 35, 5437-5440.
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Yu, J.1
Cho, H.-S.2
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Falck, J.R.4
Mioskowski, C.5
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38
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49549126692
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Trost, B. M.; Arndt, H. C.; Strege, P. E.; Verhoeven, T. R. Tetrahedron Lett. 1976, 3477-3478.
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Trost, B.M.1
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Verhoeven, T.R.4
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0000955730
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Walborsky, H. M.; Davis, R. H.; Howton, D. R. J. Am. Chem. Soc. 1951, 73, 2590-2594.
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