-
1
-
-
0027381453
-
-
J. E. Lect, D. R. Schroeder, D. R. Langley, K. L. Colson, S. Huang, S. E. Klohr, M. S. Lee, J. Golik, S. J. Hofstead, T. W. Doyle, J. A. Matson, J. Am. Chem. Soc. 1993, 115, 8432-8443.
-
(1993)
J. Am. Chem. Soc.
, vol.115
, pp. 8432-8443
-
-
Lect, J.E.1
Schroeder, D.R.2
Langley, D.R.3
Colson, K.L.4
Huang, S.5
Klohr, S.E.6
Lee, M.S.7
Golik, J.8
Hofstead, S.J.9
Doyle, T.W.10
Matson, J.A.11
-
2
-
-
0003451102
-
-
Springer, Tokyo
-
Neocarzinostatin: The Past, Present, and Future of an Anticancer Drug (Eds.: H. Maeda, K. Edo, N. Ishida), Springer, Tokyo, 1997.
-
(1997)
Neocarzinostatin: The Past, Present, and Future of an Anticancer Drug
-
-
Maeda, H.1
Edo, K.2
Ishida, N.3
-
3
-
-
0342786184
-
-
note
-
There is evidence that the kedarcidin chromophore is subject to nucleophilic activation as well. For example, it has been shown that 1 undergoes reduction/cycloaromatization with sodium borohydride: see: Ref. [1].
-
-
-
-
5
-
-
0000748262
-
-
b) S. Kawata, F. Yoshimura, J. Irie, H. Ehara, M. Hirama, Synlett 1997, 250-252.
-
(1997)
Synlett
, pp. 250-252
-
-
Kawata, S.1
Yoshimura, F.2
Irie, J.3
Ehara, H.4
Hirama, M.5
-
7
-
-
0000150249
-
-
Diyne 8 was prepared according to the protocol of Hirama for a closely related compound, differing from 8 only in the nature of the silyl protective groups: see: K.-i. Iida, M. Hirama, J. Am. Chem. Soc. 1994, 116, 10310-10311.
-
(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 10310-10311
-
-
Iida, K.-I.1
Hirama, M.2
-
9
-
-
0021074490
-
-
N. Cohen, B. L. Banner, R. J. Lopresti, F. Wong, M. Rosenberger, Y.-Y. Liu, E. Thom, A. A. Liebman, J. Am. Chem. Soc. 1983, 105, 3661-3672.
-
(1983)
J. Am. Chem. Soc.
, vol.105
, pp. 3661-3672
-
-
Cohen, N.1
Banner, B.L.2
Lopresti, R.J.3
Wong, F.4
Rosenberger, M.5
Liu, Y.-Y.6
Thom, E.7
Liebman, A.A.8
-
10
-
-
0002957219
-
-
For the use of (trimethylsilyl)diazomethyllithium in the alkynylation of aldehydes, see: K. Miwa, T. Aoyama, T. Shioiri, Synlett 1994, 107-108.
-
(1994)
Synlett
, pp. 107-108
-
-
Miwa, K.1
Aoyama, T.2
Shioiri, T.3
-
12
-
-
9644292316
-
-
The conversion of a diol to a cyclic sulfate is typically conducted in a two-step procedure, by cyclic sulfite formation, then sulfite oxidation (Y. Giao, K. B. Sharpless, J. Am. Chem. Soc. 1988, 110, 7538-7539). In the present case, decomposition occurred during oxidation of the diastereomeric cyclic sulfite intermediates. Sharpless and co-workers have shown that electron-deficient vicinal diols can be transformed into the corresponding cyclic sulfates directly, in one step, using sulfuryl chloride (K. P. M. Vanhessche, K. B. Sharpless, Chem. Eur. J. 1997, 3, 517-522). The conditions developed here were optimal for substrate 12 and differ significantly from those described by Sharpless and co- workers.
-
(1988)
J. Am. Chem. Soc.
, vol.110
, pp. 7538-7539
-
-
Giao, Y.1
Sharpless, K.B.2
-
13
-
-
0030900381
-
-
The conversion of a diol to a cyclic sulfate is typically conducted in a two-step procedure, by cyclic sulfite formation, then sulfite oxidation (Y. Giao, K. B. Sharpless, J. Am. Chem. Soc. 1988, 110, 7538-7539). In the present case, decomposition occurred during oxidation of the diastereomeric cyclic sulfite intermediates. Sharpless and co-workers have shown that electron-deficient vicinal diols can be transformed into the corresponding cyclic sulfates directly, in one step, using sulfuryl chloride (K. P. M. Vanhessche, K. B. Sharpless, Chem. Eur. J. 1997, 3, 517-522). The conditions developed here were optimal for substrate 12 and differ significantly from those described by Sharpless and co-workers.
-
(1997)
Chem. Eur. J.
, vol.3
, pp. 517-522
-
-
Vanhessche, K.P.M.1
Sharpless, K.B.2
-
14
-
-
0001575578
-
-
T. W. Bentley, J.-P. Dau-Schmidt, G. Llewellyn, H. Mnyr, J. Org. Chem. 1992, 57, 2387-2392; for related calculations, see: Y.-R. Luo, J. L. Holmes, J. Phys. Chem. 1994, 98, 10368-10372.
-
(1992)
J. Org. Chem.
, vol.57
, pp. 2387-2392
-
-
Bentley, T.W.1
Dau-Schmidt, J.-P.2
Llewellyn, G.3
Mnyr, H.4
-
15
-
-
0000732682
-
-
T. W. Bentley, J.-P. Dau-Schmidt, G. Llewellyn, H. Mnyr, J. Org. Chem. 1992, 57, 2387-2392; for related calculations, see: Y.-R. Luo, J. L. Holmes, J. Phys. Chem. 1994, 98, 10368-10372.
-
(1994)
J. Phys. Chem.
, vol.98
, pp. 10368-10372
-
-
Luo, Y.-R.1
Holmes, J.L.2
-
16
-
-
33845283423
-
-
a) A. Minato, K. Suzuki, K. Tamao, J. Am. Chem. Soc. 1987, 109, 1257-1258;
-
(1987)
J. Am. Chem. Soc.
, vol.109
, pp. 1257-1258
-
-
Minato, A.1
Suzuki, K.2
Tamao, K.3
-
17
-
-
0025000356
-
-
b) W. R. Roush, K. J. Moriarty, B. B. Brown, Tetrahedron Lett. 1990, 31, 6509-6512.
-
(1990)
Tetrahedron Lett.
, vol.31
, pp. 6509-6512
-
-
Roush, W.R.1
Moriarty, K.J.2
Brown, B.B.3
-
18
-
-
0027292115
-
-
a) J. M. Nuss, R. A. Rennels, B. H. Levine, J. Am. Chem. Soc. 1993, 115, 6991-6992;
-
(1993)
J. Am. Chem. Soc.
, vol.115
, pp. 6991-6992
-
-
Nuss, J.M.1
Rennels, R.A.2
Levine, B.H.3
-
19
-
-
0027462695
-
-
b) S. Torii, H. Okumoto, T. Tadokoro, A. Nishimura, Md. A. Rashid, Tetrahedron Lett. 1993, 34, 2139-2142.
-
(1993)
Tetrahedron Lett.
, vol.34
, pp. 2139-2142
-
-
Torii, S.1
Okumoto, H.2
Tadokoro, T.3
Nishimura, A.4
Rashid, Md.A.5
-
20
-
-
0027495167
-
-
4Cl: D. F. Taber, T. E. Christos, A. L. Reingold, I. A. Guzei, J. Am. Chem. Soc. 1999, 121, 5589-5590.
-
(1993)
J. Am. Chem. Soc.
, vol.115
, pp. 9345-9346
-
-
Hayward, C.M.1
Yohannes, D.2
Danishefsky, S.J.3
-
21
-
-
0029611192
-
-
4Cl: D. F. Taber, T. E. Christos, A. L. Reingold, I. A. Guzei, J. Am. Chem. Soc. 1999, 121, 5589-5590.
-
(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 12013-12014
-
-
Smith A.B. III1
Chen, S.S.-Y.2
Nelson, F.C.3
Reichert, J.M.4
Salvatore, B.A.5
-
22
-
-
0033575093
-
-
4Cl: D. F. Taber, T. E. Christos, A. L. Reingold, I. A. Guzei, J. Am. Chem. Soc. 1999, 121, 5589-5590.
-
(1999)
J. Am. Chem. Soc.
, vol.121
, pp. 5589-5590
-
-
Taber, D.F.1
Christos, T.E.2
Reingold, A.L.3
Guzei, I.A.4
-
24
-
-
0000776391
-
-
E. J. Corey, H. Cho, C. Rucker, D. H. Hua, Tetrahedron Lett. 1981, 22, 3455-3458.
-
(1981)
Tetrahedron Lett.
, vol.22
, pp. 3455-3458
-
-
Corey, E.J.1
Cho, H.2
Rucker, C.3
Hua, D.H.4
-
27
-
-
0039648165
-
-
4: see: a) J. H. Mathews, E. B. Benger, J. Phys. Chem. 1914, 18, 264-268;
-
(1914)
J. Phys. Chem.
, vol.18
, pp. 264-268
-
-
-
28
-
-
33947490752
-
-
4: see: a) J. H. Mathews, E. B. Benger, J. Phys. Chem. 1914, 18, 264-268; b) E. Kokot, R. L. Martin, Inorg. Chem. 1964, 3, 1306-1312.
-
(1964)
Inorg. Chem.
, vol.3
, pp. 1306-1312
-
-
Kokot, E.1
Martin, R.L.2
-
29
-
-
0342351260
-
-
note
-
When copper(1) acetate was used instead of copper(1) iodide compound 6 was still not formed, which may explain the failure of the comixing experiment.
-
-
-
-
30
-
-
0001594676
-
-
D. O'Krongly, S. R. Denmeade, M. Y. Chiang, R. Breslow, J. Am. Chem. Soc. 1985, 107, 5544-5545.
-
(1985)
J. Am. Chem. Soc.
, vol.107
, pp. 5544-5545
-
-
O'Krongly, D.1
Denmeade, S.R.2
Chiang, M.Y.3
Breslow, R.4
-
31
-
-
0002772829
-
-
and references therein
-
Mechanisms involving single-electron transfer, although felt to be less likely, cannot be ruled out; see: W. F. Bailey, J. J. Patricia, J. Organomet. Chem. 1989, 352, 1-46, and references therein.
-
(1989)
J. Organomet. Chem.
, vol.352
, pp. 1-46
-
-
Bailey, W.F.1
Patricia, J.J.2
-
34
-
-
0343656376
-
-
note
-
+]: 548.1636; found: 548.1630.
-
-
-
|