-
1
-
-
4544266546
-
-
Torisu, K.; Kobayashi, K.; Iwahashi, M.; Nakai, Y.; Onoda, T.; Nagase, T.; Sugimoto, I.; Okada, Y.; Matsumoto, R.; Nanbu, F.; Ohuchida, S.; Nakai, H.; Toda, M. Bioorg. Med. Chem. 2004, 12, 5361.
-
(2004)
Bioorg. Med. Chem
, vol.12
, pp. 5361
-
-
Torisu, K.1
Kobayashi, K.2
Iwahashi, M.3
Nakai, Y.4
Onoda, T.5
Nagase, T.6
Sugimoto, I.7
Okada, Y.8
Matsumoto, R.9
Nanbu, F.10
Ohuchida, S.11
Nakai, H.12
Toda, M.13
-
2
-
-
0033008252
-
-
Ohtake, Y.; Naito, A.; Hasegawa, H.; Kawano, K.; Morizono, D.; Taniguchi, M.; Tanaka, Y.; Matsukawa, H.; Naito, K.; Oguma, T.; Ezure, Y.; Tsuriya, Y. Bioorg. Med. Chem. 1999, 7, 1247.
-
(1999)
Bioorg. Med. Chem
, vol.7
, pp. 1247
-
-
Ohtake, Y.1
Naito, A.2
Hasegawa, H.3
Kawano, K.4
Morizono, D.5
Taniguchi, M.6
Tanaka, Y.7
Matsukawa, H.8
Naito, K.9
Oguma, T.10
Ezure, Y.11
Tsuriya, Y.12
-
3
-
-
0017302124
-
-
(a) Barrows, T. H.; Farina, P. R.; Chrzanowski, R. L.; Benkovic, P. A.; Benkovic, S. J. J. Am. Chem. Soc. 1976, 98, 3678.
-
(1976)
J. Am. Chem. Soc
, vol.98
, pp. 3678
-
-
Barrows, T.H.1
Farina, P.R.2
Chrzanowski, R.L.3
Benkovic, P.A.4
Benkovic, S.J.5
-
5
-
-
0000954852
-
-
(c) Benkovic, S. J.; Barrows, T. H.; Farina, P. R. J. Am. Chem. Soc. 1973, 95, 8414.
-
(1973)
J. Am. Chem. Soc
, vol.95
, pp. 8414
-
-
Benkovic, S.J.1
Barrows, T.H.2
Farina, P.R.3
-
6
-
-
0034742834
-
-
(a) Pitts, M. R.; Harrison, J. R.; Moody, C. J. J. Chem. Soc., Perkin Trans. 1 2001, 955.
-
(2001)
J. Chem. Soc., Perkin Trans. 1
, pp. 955
-
-
Pitts, M.R.1
Harrison, J.R.2
Moody, C.J.3
-
9
-
-
2942582763
-
-
(a) Yang, S.-C.; Liu, P.-C.; Feng, W.-H. Tetrahedron Lett. 2004, 45, 4951.
-
(2004)
Tetrahedron Lett
, vol.45
, pp. 4951
-
-
Yang, S.-C.1
Liu, P.-C.2
Feng, W.-H.3
-
10
-
-
0037899175
-
-
(b) Yang, S.-C.; Shue, Y.-J.; Liu, P.-C. Organometallics 2002, 21, 2013.
-
(2002)
Organometallics
, vol.21
, pp. 2013
-
-
Yang, S.-C.1
Shue, Y.-J.2
Liu, P.-C.3
-
12
-
-
11444256674
-
-
Nair, V.; Dhanya, R.; Rajesh, C.; Bhadbhade, M. M.; Manoj, K. Org. Lett. 2004, 6, 4743.
-
(2004)
Org. Lett
, vol.6
, pp. 4743
-
-
Nair, V.1
Dhanya, R.2
Rajesh, C.3
Bhadbhade, M.M.4
Manoj, K.5
-
13
-
-
0034607870
-
-
Bunce, R. A.; Herron, D. M.; Ackerman, M. L. J. Org. Chem. 2000, 65, 2847.
-
(2000)
J. Org. Chem
, vol.65
, pp. 2847
-
-
Bunce, R.A.1
Herron, D.M.2
Ackerman, M.L.3
-
14
-
-
0347087382
-
-
(a) Bunce, R. A.; Herron, D. M.; Hale, L. Y. J. Heterocycl. Chem. 2003, 40, 1031.
-
(2003)
J. Heterocycl. Chem
, vol.40
, pp. 1031
-
-
Bunce, R.A.1
Herron, D.M.2
Hale, L.Y.3
-
16
-
-
0032927828
-
-
Tapia, R. A.; Centella, C. R.; Valderrama, J. A. Synth. Commun. 1999, 29, 2163.
-
(1999)
Synth. Commun
, vol.29
, pp. 2163
-
-
Tapia, R.A.1
Centella, C.R.2
Valderrama, J.A.3
-
18
-
-
0035953011
-
-
(b) Krchňák, V.; Smith, J.; Vagner, J. Tetrahedron Lett. 2001, 42, 2443.
-
(2001)
Tetrahedron Lett
, vol.42
, pp. 2443
-
-
Krchňák, V.1
Smith, J.2
Vagner, J.3
-
19
-
-
34250873950
-
-
Merisor, E.; Conrad, J.; Klaiber, I.; Mika, S.; Beifuss, U. Angew. Chem. Int. Ed. 2007, 46, 3353.
-
(2007)
Angew. Chem. Int. Ed
, vol.46
, pp. 3353
-
-
Merisor, E.1
Conrad, J.2
Klaiber, I.3
Mika, S.4
Beifuss, U.5
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34548179572
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Selected Data for 2a (Figure 3, Rf 0.40 (PE-EtOAc, 20:1, IR (ATR, 3376 (NH, 2952, 2854 (Me, CH2, 1691 (C=O, 1604, 1501 (C=C, 1435, 1382, 1372 (COO, 1232, 1211, 1146, 1061, COC, 900, 760, 741 cm-1. UV-Vis (EtOH, λmax (log ε, 307 (2.48, 253 (2.40, 220 (2.34) nm. 1H NMR (300 MHz, CDCl3, δ, 1.85 (s, 3 H, 3′-Me, 3.58 (dd, 2J, 12.3 Hz, 3J, 6.2 Hz, 1 H, 2-H, 3.81 (s, 3 H, OMe, 3.98 (dd, 3J, 3.4, 6.2 Hz, 1 H, 3-H, 4.02 (dd, 2J, 12.3 Hz, 3J, 3.3 Hz, 1 H, 2-H, 4.98 (br s, 1 H, 2′-H, 5.05 (br s, 1 H, 2′-H, 6.65 (dd, 3J, 8.0 Hz, 4J, 1.4 Hz, 1 H, 5-H, 6.70 (ddd, 3J, 7.4, 8.2 Hz, 4J, 1.5 Hz, 1 H, 7-H, 6.97 ddd, 3J, 7.4, 7.9 Hz, 4J, 1.4 Hz, 1 H, 6-H, 7.4
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2: C, 67.22; H, 6.94; N, 12.06. Found: C, 67.43; H, 7.01; N, 11.99. (Chemical Equation Presented) Figure 4
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21
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34548161117
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Selected Data for 3a (Figure 4, Rf 0.59 (PE-EtOAc, 20:1, IR (ATR, 2980, 2958 (Me, CH2, 1702 (C=O, 1602, 1504 (C=C, 1438, 1375, 1344 (COO, 1217, 1190, 1145, 1062, COC, 899, 733 cm-1. UV-Vis (EtOH, λmax (log ε, 310 (2.49, 258 (2.41, 223 (2.35) nm. 1H NMR (300 MHz, CDCl 3, δ, 1.17 (t, 3J, 7.1 Hz, 3 H, 2″-Me, 1.80 (s, 3 H, 3′-Me, 3.15-3.27 (over-lapped, 2 H, 1″-CH2, 3.52 (dd, 2J, 13.1 Hz, 3J, 7.1 Hz, 1 H, 2-H, 3.76 (s, 3 H, OMe, 3.94 (t, 3J, 7.1 Hz, 1 H, 3-H, 4.37 (dd, 2J, 12.9 Hz, 3J, 7.1 Hz, 1 H, 2-H, 4.81 (br s, 1 H, 2′-H, 4.93 (br s, 1 H, 2′-H, 6.62 (dd, 3J, 8.1 Hz, 4J, 1.1 Hz, 1 H, 5-H, 6.75 ddd, 3J, 7.8, 8.1 Hz, 4J, 1.2 Hz
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2: 260.1525; found: 260.1507.
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25
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34548172684
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Scheme 3 shows a mechanism involving a triplet nitrene. However, the occurrence of a singlet nitrene cannot be ruled out.
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Scheme 3 shows a mechanism involving a triplet nitrene. However, the occurrence of a singlet nitrene cannot be ruled out.
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28
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34548174919
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4 and after concentration in vacuo was purified by flash chromatography on silica gel (PE-EtOAc, 20:1).
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4 and after concentration in vacuo was purified by flash chromatography on silica gel (PE-EtOAc, 20:1).
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30
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0028869712
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Mohri, K.; Suzuki, K.; Usui, M.; Isobe, K.; Tsuda, Y. Chem. Pharm. Bull. 1995, 43, 159.
-
(1995)
Chem. Pharm. Bull
, vol.43
, pp. 159
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Mohri, K.1
Suzuki, K.2
Usui, M.3
Isobe, K.4
Tsuda, Y.5
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32
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0029791462
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Broggini, G.; Garanti, L.; Molteni, G.; Zecchi, G. Synthesis 1996, 1076.
-
(1996)
Synthesis
, pp. 1076
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Broggini, G.1
Garanti, L.2
Molteni, G.3
Zecchi, G.4
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