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Domagala, J. M. J. Antimicrob. Chemother. 1994, 33, 685; Braish, T. B.; Fox, D. E. J. Org. Chem. 1990, 55, 1684; Jordis, U.; Sauter, F.; Siddigi, S. M.; Kuenberg, B.; Bhattacharya, K. Synthesis 1990, 925; Gubert, S.; Broaojos, C.; Sacristan, A.; Ortiz, J. A. Synthesis 1991, 318.
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cf. N-Alkylated 3-phenysulfonyl-3-pyrroline have been obtained by the reaction of amines with 2,3-bis(phenylsulfonyl)-1,3-butadiene, followed by elimination step, see : Padwa, A.; Norman,B. H. J. Org. Chem. 1990, 55, 4801.
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14
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85033806890
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We gratefully thank Prof. Kim, M. J. for X-ray crystallographic analysis
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We gratefully thank Prof. Kim, M. J. for X-ray crystallographic analysis.
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15
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85033810817
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note
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We have found that the intramolecular cyclization reaction of sulfone ester have been influenced on the protecting group of nitrogen at 4-position of pyrrolidine. Studies on the cyclization reaction according to nitrogen protecting group and electron withdrawing group are underway and will be reported in due course.
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0027458117
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Grimm, E. L.; Coutu, M. L.; Trimble, L. A. Tetrahedron Lett. 1993, 34, 7017, and references therein. Grimm, E. L.; Levac, S.; Coutu, M. L. Tetrahedron Lett. 1994, 35, 5369; Grimm, E. L.; Levac, S.; Trimble, L. A. s Tetrahedron Lett. 1994, 35, 6847.
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Grimm, E. L.; Coutu, M. L.; Trimble, L. A. Tetrahedron Lett. 1993, 34, 7017, and references therein. Grimm, E. L.; Levac, S.; Coutu, M. L. Tetrahedron Lett. 1994, 35, 5369; Grimm, E. L.; Levac, S.; Trimble, L. A. s Tetrahedron Lett. 1994, 35, 6847.
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Kende, A. S.; Mendoza, J. S. Tetrahedron Lett. 1990, 31, 7105.; Ihara, M.; Suzuki, S.; Taniguchi, T.; Tokunaga, Y.; Fukumoto, K. Synlett 1994, 859.; Simpkins, N. S. 'Sulphones in Organic Synthesis,' Pergamon Press , New York, 1993.
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and references therein
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Removal of the sulfonyl group, see : Ku, Y. Y.; Patel, R- R.; Roden, B. A.; Sawick, D. P. Tetrahedron Lett. 1994, 35, 6017, and references therein.
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25
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85033812789
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note
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-1) 1149, 1169, 1251, 1308, 1368, 1408, 1680, 1697, 3399.
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