-
1
-
-
0023864515
-
-
G.R. Pettit, M. Inoue, Y. Kamano, D.L. Herald, C. Arm, C. Dufresne, N.D. Christie, J.M. Schmidt, D.L. Doubek, and T.S. Krupa J. Am. Chem. Soc. 110 1988 2006 2007
-
(1988)
J. Am. Chem. Soc.
, vol.110
, pp. 2006-2007
-
-
Pettit, G.R.1
Inoue, M.2
Kamano, Y.3
Herald, D.L.4
Arm, C.5
Dufresne, C.6
Christie, N.D.7
Schmidt, J.M.8
Doubek, D.L.9
Krupa, T.S.10
-
2
-
-
0031927985
-
-
(b) Recent publication: G.R. Pettit, R. Tan, J.-P. Xu, Y. Ichihara, M.D. Williams, and M.R. Boyd J. Nat. Prod. 61 1998 955 958 and references cited therein
-
(1998)
J. Nat. Prod.
, vol.61
, pp. 955-958
-
-
Pettit, G.R.1
Tan, R.2
Xu, J.-P.3
Ichihara, Y.4
Williams, M.D.5
Boyd, M.R.6
-
7
-
-
0028347992
-
-
G.R. Pettit, J.-P. Xu, M.D. Williams, N.D. Christie, D.L. Doubek, J.M. Schmidt, and M.R. Boyd J. Nat. Prod. 57 1994 52 63
-
(1994)
J. Nat. Prod.
, vol.57
, pp. 52-63
-
-
Pettit, G.R.1
Xu, J.-P.2
Williams, M.D.3
Christie, N.D.4
Doubek, D.L.5
Schmidt, J.M.6
Boyd, M.R.7
-
8
-
-
0033530099
-
-
T.G. LaCour, C. Guo, S. Ma, J.U. Jeong, M.R. Boyd, S. Matsunaga, N. Fusetani, and P.L. Fuchs Bioorg. Med. Chem. Lett. 9 1999 2587 2592
-
(1999)
Bioorg. Med. Chem. Lett.
, vol.9
, pp. 2587-2592
-
-
Lacour, T.G.1
Guo, C.2
Ma, S.3
Jeong, J.U.4
Boyd, M.R.5
Matsunaga, S.6
Fusetani, N.7
Fuchs, P.L.8
-
9
-
-
9144226235
-
-
V.M. Dirsch, I.M. Muller, S.T. Eichhorst, G.R. Pettit, Y. Kamano, M. Inoue, J.P. Xu, Y. Ichihara, G. Wanner, and A.M. Vollmar Cancer Res. 63 2003 8869 8876
-
(2003)
Cancer Res.
, vol.63
, pp. 8869-8876
-
-
Dirsch, V.M.1
Muller, I.M.2
Eichhorst, S.T.3
Pettit, G.R.4
Kamano, Y.5
Inoue, M.6
Xu, J.P.7
Ichihara, Y.8
Wanner, G.9
Vollmar, A.M.10
-
10
-
-
0344837705
-
-
T. Komiya, N. Fusetani, S. Matsunaga, A. Kubo, F.J. Kaye, M.J. Kelley, K. Tamura, M. Yoshida, M. Fukuoka, and K. Nakagawa Cancer Chemother. Pharm. 51 2003 202 208
-
(2003)
Cancer Chemother. Pharm.
, vol.51
, pp. 202-208
-
-
Komiya, T.1
Fusetani, N.2
Matsunaga, S.3
Kubo, A.4
Kaye, F.J.5
Kelley, M.J.6
Tamura, K.7
Yoshida, M.8
Fukuoka, M.9
Nakagawa, K.10
-
13
-
-
0032481403
-
-
T.G. LaCour, C. Guo, S. Bhandaru, M.R. Boyd, and P.L. Fuchs J. Am. Chem. Soc. 120 1998 692 707
-
(1998)
J. Am. Chem. Soc.
, vol.120
, pp. 692-707
-
-
Lacour, T.G.1
Guo, C.2
Bhandaru, S.3
Boyd, M.R.4
Fuchs, P.L.5
-
14
-
-
2742596088
-
-
M. Drögemüller, T. Flessner, R. Jautelat, U. Scholz, and E. Winterfeldt Eur. J. Org. Chem. 1998 2811 2831
-
(1998)
Eur. J. Org. Chem.
, pp. 2811-2831
-
-
Drögemüller, M.1
Flessner, T.2
Jautelat, R.3
Scholz, U.4
Winterfeldt, E.5
-
16
-
-
0033577299
-
-
S. Kim, S.C. Sutton, C. Guo, T.G. LaCour, and P.L. Fuchs J. Am. Chem. Soc. 121 1999 2056 2070
-
(1999)
J. Am. Chem. Soc.
, vol.121
, pp. 2056-2070
-
-
Kim, S.1
Sutton, S.C.2
Guo, C.3
Lacour, T.G.4
Fuchs, P.L.5
-
30
-
-
0001678648
-
-
Isolation (a): S. Kubo, Y. Mimaki, M. Terao, Y. Sashida, T. Nikaido, and T. Ohmoto Phytochemistry 31 1992 3969 3973
-
(1992)
Phytochemistry
, vol.31
, pp. 3969-3973
-
-
Kubo, S.1
Mimaki, Y.2
Terao, M.3
Sashida, Y.4
Nikaido, T.5
Ohmoto, T.6
-
37
-
-
0037129408
-
-
Part of this work was previously published as a preliminary communication: C. Betancor, R. Freire, I. Pérez-Martín, T. Prangé, and E. Suárez Org. Lett. 4 2002 1295 1297
-
(2002)
Org. Lett.
, vol.4
, pp. 1295-1297
-
-
Betancor, C.1
Freire, R.2
Pérez-Martín, I.3
Prangé, T.4
Suárez, E.5
-
39
-
-
0001238367
-
Hydrogen Atom Abstraction
-
P. Renaud M.P. Sibi Wiley-VCH Weinheim
-
L. Feray, N. Kuznetsov, and P. Renaud P. Renaud M.P. Sibi Hydrogen Atom Abstraction Radicals in Organic Synthesis Vol. 2 2001 Wiley-VCH Weinheim 246 278
-
(2001)
Radicals in Organic Synthesis
, vol.2
, pp. 246-278
-
-
Feray, L.1
Kuznetsov, N.2
Renaud, P.3
-
43
-
-
0032478575
-
-
R.L. Dorta, A. Martín, J.A. Salazar, E. Suárez, and T. Prangé J. Org. Chem. 63 1998 2251 2261
-
(1998)
J. Org. Chem.
, vol.63
, pp. 2251-2261
-
-
Dorta, R.L.1
Martín, A.2
Salazar, J.A.3
Suárez, E.4
Prangé, T.5
-
44
-
-
85030816866
-
-
See for example: pairs of ritterazines A/D, B/F (Ref. 2b) and N/O, P/Q, R/S and W/X (Ref. 2c).
-
See for example: pairs of ritterazines A/D, B/F (Ref. 2b) and N/O, P/Q, R/S and W/X (Ref. 2c).
-
-
-
-
46
-
-
0001341087
-
-
A.G. González, R. Freire, M.G. García-Estrada, J.A. Salazar, and E. Suárez Tetrahedron 28 1972 1289 1297
-
(1972)
Tetrahedron
, vol.28
, pp. 1289-1297
-
-
González, A.G.1
Freire, R.2
García-Estrada, M.G.3
Salazar, J.A.4
Suárez, E.5
-
47
-
-
0141662552
-
-
A.G. González, R. Freire, M.G. García-Estrada, J.A. Salazar, and E. Suárez Anal. Quim. 67 1971 903 905
-
(1971)
Anal. Quim.
, vol.67
, pp. 903-905
-
-
González, A.G.1
Freire, R.2
García-Estrada, M.G.3
Salazar, J.A.4
Suárez, E.5
-
51
-
-
0141712450
-
-
2PHAL as ligand K.B. Sharpless, W. Amberg, Y.L. Bennani, G.A. Crispino, J. Hartung, K.S. Jeong, H.L. Kwong, K. Morikawa, Z.M. Wang, D. Xu, and X.L. Zhang J. Org. Chem. 57 1992 2768 2771 see: Refs. 5c,17b
-
(1992)
J. Org. Chem.
, vol.57
, pp. 2768-2771
-
-
Sharpless, K.B.1
Amberg, W.2
Bennani, Y.L.3
Crispino, G.A.4
Hartung, J.5
Jeong, K.S.6
Kwong, H.L.7
Morikawa, K.8
Wang, Z.M.9
Xu, D.10
Zhang, X.L.11
-
52
-
-
0024840703
-
-
E.J. Corey, P.D. Jardine, S. Virgil, P.-W. Yuen, and R.D. Connell J. Am. Chem. Soc. 111 1989 9243 9244
-
(1989)
J. Am. Chem. Soc.
, vol.111
, pp. 9243-9244
-
-
Corey, E.J.1
Jardine, P.D.2
Virgil, S.3
Yuen, P.-W.4
Connell, R.D.5
-
53
-
-
0001362991
-
-
For studies of the influence of polar factors on intermolecular hydrogen abstraction reactions see: (a) A.L.J. Beckwith, and A.A. Zavitsas J. Am. Chem. Soc. 117 1995 607 614
-
(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 607-614
-
-
Beckwith, A.L.J.1
Zavitsas, A.A.2
-
56
-
-
33748737740
-
-
Although we have no experimental support for this reasoning, it is strongly supported by previous results on related models. For examples of the influence of the polarity of the substituents on the 1,5-hydrogen atom tranfer reaction compared with competing β-fragmentation of alkoxyl radicals, see: (a) P.R. Allen, M.A. Brimble, and F.A. Farès J. Chem. Soc., Perkin Trans. 1 1998 2403 2411
-
(1998)
J. Chem. Soc., Perkin Trans. 1
, pp. 2403-2411
-
-
Allen, P.R.1
Brimble, M.A.2
Farès, F.A.3
-
58
-
-
85030812609
-
-
note
-
2).
-
-
-
-
59
-
-
85030813752
-
-
note
-
Crystallographic data (excluding structure factors) for the structures 18, 23, 29, and 34 in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication numbers CCDC-176076, CCDC-176077, CCDC-243668, CCDC-243669 respectively. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [fax: +44 (0) 1223-336033 or e-mail: deposit@ccdc.cam.ac.uk ].
-
-
-
-
65
-
-
0004208435
-
-
Reinhold Publishing Corp New York
-
No compounds of the 1,6-dioxaspiro[4.5]decane type belonging to the (22S)-spirostan, (20R,22R)-spirostan (cyclopseudoiso), or (20R,22S)-spirostan (cyclopseudoneo) series of spirostan sapogenins, which are theoretically possible through an oxocarbenium ion via an intermediate of furost-20(22)-en sapogenin, were detected during these acid-catalyzed experiments. (a) L.F. Fieser, and M. Fieser Steroids 1959 Reinhold Publishing Corp New York Chapter 19, pp 810-846
-
(1959)
Steroids
-
-
Fieser, L.F.1
Fieser, M.2
-
67
-
-
85030814366
-
-
CambridgeSoft Corp.: Cambridge, MA.
-
CS Chem3D Ultra v. 6.0, CambridgeSoft Corp.: Cambridge, MA.
-
CS Chem3D Ultra V. 6.0
-
-
-
68
-
-
85030817908
-
-
note
-
24b=90.6°).
-
-
-
-
71
-
-
0028214895
-
-
Data were taken from the X-ray analysis of (22S,23R,25S)-3β, 12β-diacetoxy-22,25-epoxy-5α-furostan-23,26-diol. J.U. Jeong, and P.L. Fuchs J. Am. Chem. Soc. 116 1994 773 774
-
(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 773-774
-
-
Jeong, J.U.1
Fuchs, P.L.2
-
72
-
-
85030816324
-
-
(Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK)
-
j (J=0-4) were obtained from the X-ray cif files using Mercury v. 1.2.1 (Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK) (http://www.ccdc.cam.ac.uk/mercury/).
-
Mercury V. 1.2.1
-
-
-
78
-
-
37049117476
-
-
For an early conformational study of the F-ring of natural spirostan sapogenins deoxygenated at C-23 see: R.K. Callow, V.H.T. James, O. Kennard, J.E. Page, P.N. Paton, and L. Riva di Sanseverino J. Chem. Soc. (C) 1966 288 297
-
(1966)
J. Chem. Soc. (C)
, pp. 288-297
-
-
Callow, R.K.1
James, V.H.T.2
Kennard, O.3
Page, J.E.4
Paton, P.N.5
Riva Di Sanseverino, L.6
-
79
-
-
85030810395
-
-
Shortly before submitting our preliminary communication (Ref. 9) we became aware of the studies by Prof. P.L. Fuchs in the ASAP section of Organic Letters (Refs. 5g, 19b, see also Ref. 5c) where IHA reactions are used to prepare related dioxaspiro compounds.
-
ASAP Section of Organic Letters
-
-
Fuchs, P.L.1
|