-
3
-
-
0001283386
-
-
Patai. S.; Rappoport, Z., Eds.; John Wiley & Sons: New York, Chapter 10
-
For a review: Yamamoto, Y.; Kojima, S. In The Chemistry of Amidines and Imidates; Patai. S.; Rappoport, Z., Eds.; John Wiley & Sons: New York, 1991; Vol. 2; Chapter 10, p 486-526.
-
(1991)
The Chemistry of Amidines and Imidates
, vol.2
, pp. 486-526
-
-
Yamamoto, Y.1
Kojima, S.2
-
7
-
-
0026467126
-
-
Recent leading references: (a) Poss, M. A.; Iwanowicz, E.; Reid, J. A.; Lin, J.; Gu, Z. Tetrahedron Lett. 1992, 33, 5933-5936.
-
(1992)
Tetrahedron Lett.
, vol.33
, pp. 5933-5936
-
-
Poss, M.A.1
Iwanowicz, E.2
Reid, J.A.3
Lin, J.4
Gu, Z.5
-
9
-
-
0030936351
-
-
(c) Levallet, C.; Lerpiniere, J.; Ko, S. Y. Tetrahedron 1997, 53, 5291-5304.
-
(1997)
Tetrahedron
, vol.53
, pp. 5291-5304
-
-
Levallet, C.1
Lerpiniere, J.2
Ko, S.Y.3
-
10
-
-
0000911184
-
-
(d) Yong, Y. F.; Kowalski, J. A.; Lipton, M. A. J. Org. Chem. 1997, 62, 1540-1542.
-
(1997)
J. Org. Chem.
, vol.62
, pp. 1540-1542
-
-
Yong, Y.F.1
Kowalski, J.A.2
Lipton, M.A.3
-
12
-
-
0026630253
-
-
(b) Tian, Z.; Edwards, P.; Roeske, R. W. Int. J. Peptide Protein Res. 1992, 40, 119-126.
-
(1992)
Int. J. Peptide Protein Res.
, vol.40
, pp. 119-126
-
-
Tian, Z.1
Edwards, P.2
Roeske, R.W.3
-
17
-
-
45549118654
-
-
(c) Kim, K.; Lin, Y.- T.; Mosher, H. S. Tetrahedron Lett. 1988, 29, 3183-3186.
-
(1988)
Tetrahedron Lett.
, vol.29
, pp. 3183-3186
-
-
Kim, K.1
Lin, Y.-T.2
Mosher, H.S.3
-
19
-
-
0027191115
-
-
(b) Bernatowicz, M. S.; Wu, Y.; Matsueda, G. R. Tetrahedron Lett. 1993, 34, 3389-3392.
-
(1993)
Tetrahedron Lett.
, vol.34
, pp. 3389-3392
-
-
Bernatowicz, M.S.1
Wu, Y.2
Matsueda, G.R.3
-
21
-
-
0000735249
-
-
Quite recently, bisprotected guanidine triflate was reported as efficient guanidinylation reagent
-
Quite recently, bisprotected guanidine triflate was reported as efficient guanidinylation reagent.: Feichtinger, K.; Zapf, C.; Sings, H. L.; Goodman, M. J. Org. Chem. 1998, 63, 3804-3805.
-
(1998)
J. Org. Chem.
, vol.63
, pp. 3804-3805
-
-
Feichtinger, K.1
Zapf, C.2
Sings, H.L.3
Goodman, M.4
-
22
-
-
0025296189
-
-
(a) Isobe, M.; Fukuda, Y.; Nishikawa, T.; Chabert, P.; Kawai, T.; Goto, T. Tetrahedron Lett. 1990, 31, 3327-3330.
-
(1990)
Tetrahedron Lett.
, vol.31
, pp. 3327-3330
-
-
Isobe, M.1
Fukuda, Y.2
Nishikawa, T.3
Chabert, P.4
Kawai, T.5
Goto, T.6
-
24
-
-
0032507998
-
-
(c) Bamba, M.; Nishikawa, T.; Isobe, M. Tetrahedron 1998, 54, 6639-6650.
-
(1998)
Tetrahedron
, vol.54
, pp. 6639-6650
-
-
Bamba, M.1
Nishikawa, T.2
Isobe, M.3
-
25
-
-
0013791915
-
-
For the structure: (a) Goto, T.; Kishi, Y.; Takahashi, S.; Hirata, Y. Tetrahedron 1965, 21, 2059-2088.
-
(1965)
Tetrahedron
, vol.21
, pp. 2059-2088
-
-
Goto, T.1
Kishi, Y.2
Takahashi, S.3
Hirata, Y.4
-
26
-
-
0013771369
-
-
(b) Tsuda, K.; Ikuma, S.; Kawamura, M.; Tachikawa, R.; Sakai, K.; Tamura, C.; Amakasu, O. Chem. Pharm. Bull. 1964, 12, 1357-1374.
-
(1964)
Chem. Pharm. Bull.
, vol.12
, pp. 1357-1374
-
-
Tsuda, K.1
Ikuma, S.2
Kawamura, M.3
Tachikawa, R.4
Sakai, K.5
Tamura, C.6
Amakasu, O.7
-
28
-
-
0015526367
-
-
For racemic total synthesis: (a) Kishi, Y.; Aratani, M.; Fukuyama, T.; Nakatsubo, F.; Goto, T.; Inoue, S.; Tanino, H.; Sugiura, S.; Kakoi, H. J. Am. Chem. Soc. 1972, 94, 9217-9219.
-
(1972)
J. Am. Chem. Soc.
, vol.94
, pp. 9217-9219
-
-
Kishi, Y.1
Aratani, M.2
Fukuyama, T.3
Nakatsubo, F.4
Goto, T.5
Inoue, S.6
Tanino, H.7
Sugiura, S.8
Kakoi, H.9
-
29
-
-
0015526373
-
-
(b) Kishi, Y.; Fukuyama, T.; Aratani, M.; Nakatsubo, F.; Goto, T.; Inoue, S.; Tanino, H.; Sugiura, S.; Kakoi, H. J. Am. Chem. Soc. 1972, 94, 9219-9221.
-
(1972)
J. Am. Chem. Soc.
, vol.94
, pp. 9219-9221
-
-
Kishi, Y.1
Fukuyama, T.2
Aratani, M.3
Nakatsubo, F.4
Goto, T.5
Inoue, S.6
Tanino, H.7
Sugiura, S.8
Kakoi, H.9
-
30
-
-
0030008274
-
-
For recent reports on the synthetic efforts from other laboratories: (a) Burgey, C. S.; Vollerthun, R.; Fraser-Reid, B. J. Org. Chem. 1996, 67, 1609-1618.
-
(1996)
J. Org. Chem.
, vol.67
, pp. 1609-1618
-
-
Burgey, C.S.1
Vollerthun, R.2
Fraser-Reid, B.3
-
31
-
-
0001821928
-
-
(b) Sato, K.; Kajihara, Y.; Nakamura, Y.; Yoshimura, J. Chem. Lett. 1991, 1559-1562.
-
(1991)
Chem. Lett.
, pp. 1559-1562
-
-
Sato, K.1
Kajihara, Y.2
Nakamura, Y.3
Yoshimura, J.4
-
32
-
-
0021016582
-
-
(c) Keana, J. F. W.; Bland, J. S.; Boyle, P. J.; Erion, M.; Hartling, R.; Husman, J. R.; Roman, R. B. J. Org. Chem. 1983, 48, 3627-3631.
-
(1983)
J. Org. Chem.
, vol.48
, pp. 3627-3631
-
-
Keana, J.F.W.1
Bland, J.S.2
Boyle, P.J.3
Erion, M.4
Hartling, R.5
Husman, J.R.6
Roman, R.B.7
-
33
-
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84920310459
-
-
note
-
10a on the synthesis of a simple model compound of tetrodotoxin, we used harsh conditions (6N NaOH/EtOH, 50 °C, 12 h) to deprotect the trichloroacetamide.
-
-
-
-
35
-
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0001741549
-
-
Review on the Overman rearrangement: (a) Overman, L. E. Acc. Chem. Res. 1980, 13, 218-224.
-
(1980)
Acc. Chem. Res.
, vol.13
, pp. 218-224
-
-
Overman, L.E.1
-
36
-
-
0003085313
-
-
Helmchen, G.; Hoffmann, R. W.; Mulzer, J.; Schaumann, E., Eds.; Thieme: Stuttgart
-
(b) Ritter, K. In Houben-Weyl. Stereoselective Synthesis. E 21, Vol. 9; Helmchen, G.; Hoffmann, R. W.; Mulzer, J.; Schaumann, E., Eds.; Thieme: Stuttgart, 1996; p 5677-5699.
-
(1996)
Houben-Weyl. Stereoselective Synthesis
, vol.9 E 21
, pp. 5677-5699
-
-
Ritter, K.1
-
37
-
-
0013547318
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-
Petrov, J.; Atanassova, I.; Balabanova, A.; Mollov, N. Izv. Khim. 1990, 23, 53-57.
-
(1990)
Izv. Khim.
, vol.23
, pp. 53-57
-
-
Petrov, J.1
Atanassova, I.2
Balabanova, A.3
Mollov, N.4
-
39
-
-
84920310458
-
-
note
-
Treatment of 6 with benzylamine hydrochloride in DMF at 100 °C for 3.5 h gave a mixture of the dibenzylguanidinium chloride 7 (23% from 5) and the urea 5.
-
-
-
-
40
-
-
0003463148
-
-
John Wiley & Sons, Inc.
-
(a) Greene, T. W.; Wuts, P. G. Protective Groups in Organic Synthesis, 2nd Ed., John Wiley & Sons, Inc. 1991, p 364-366.
-
(1991)
Protective Groups in Organic Synthesis, 2nd Ed.
, pp. 364-366
-
-
Greene, T.W.1
Wuts, P.G.2
-
41
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0003405157
-
-
Georg Thieme Verlag
-
(b) Kocienski, P. J. Protecting Groups, Georg Thieme Verlag, 1994, p 220- 227.
-
(1994)
Protecting Groups
, pp. 220-227
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Kocienski, P.J.1
-
42
-
-
84920310457
-
-
We have not examined Birch reduction conditions for debenzylation, because we considered that such conditions would not be compatible with a variety of functional groups of tetrodotoxin molecule
-
We have not examined Birch reduction conditions for debenzylation, because we considered that such conditions would not be compatible with a variety of functional groups of tetrodotoxin molecule.
-
-
-
-
45
-
-
2542433188
-
-
4, see: (a)
-
4, see: (a) Carisen, P. H.; Katsuki, T.; Martin, V. S.; Sharpless, K. B. J. Org. Chem. 1981, 46, 3936-3938. formula presented
-
(1981)
J. Org. Chem.
, vol.46
, pp. 3936-3938
-
-
Carisen, P.H.1
Katsuki, T.2
Martin, V.S.3
Sharpless, K.B.4
-
46
-
-
2542433188
-
-
note
-
4, see: (a) Carisen, P. H.; Katsuki, T.; Martin, V. S.; Sharpless, K. B. J. Org. Chem. 1981, 46, 3936-3938. formula presented
-
-
-
-
47
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0002462897
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-
Witczak, Z. J. Ed.; ATL PRESS
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Isobe, M.; Yamamoto, N.; Nishikawa, T. In Levoglucosenone and Levoglucosans, Chemistry and Applications. Witczak, Z. J. Ed.; ATL PRESS, pp. 99-118, 1994.
-
(1994)
Levoglucosenone and Levoglucosans, Chemistry and Applications
, pp. 99-118
-
-
Isobe, M.1
Yamamoto, N.2
Nishikawa, T.3
-
48
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0001184408
-
-
Nishikawa, T.; Asai, M.; Ohyabu, N.; Isobe, M. J. Org. Chem. 1998, 63, 188-192.
-
(1998)
J. Org. Chem.
, vol.63
, pp. 188-192
-
-
Nishikawa, T.1
Asai, M.2
Ohyabu, N.3
Isobe, M.4
-
49
-
-
84920310455
-
-
note
-
The by-product was tetraol iii as a single stereoisomer (18%) whose stereochemistry (*) was not determined. formula presented
-
-
-
-
50
-
-
84920310454
-
-
note
-
2) also yielded the product, but the reactions were very slow.
-
-
-
-
51
-
-
33845280591
-
-
Yasumoto, T.; Yotsu, M.; Murata, M.; Naoki, H. J. Am. Chem. Soc. 1988, 110, 2344-2345.
-
(1988)
J. Am. Chem. Soc.
, vol.110
, pp. 2344-2345
-
-
Yasumoto, T.1
Yotsu, M.2
Murata, M.3
Naoki, H.4
-
52
-
-
84920310453
-
-
note
-
The structure was iv, which was hydrogenated to give guanidinium compound v having no aminal moiety found in tetrodotoxin. formula presented
-
-
-
-
53
-
-
84920310452
-
-
note
-
1H NMR spectrum. These ratios were comparable to those of the debenzylated products 3a and 3b.
-
-
-
-
54
-
-
84920310451
-
-
General experimental details have been described: réf. 26
-
General experimental details have been described: réf. 26.
-
-
-
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