Synthesis of cephalosporin derivatives utilizing the cephem triflate. 1. Introduction of 3-position substituents via a cycloaddition-fragmentation route

Tetrahedron Letters

Volumn 37, Issue 42, 1996, Pages 7549-7552

  Kang, Han Young ^a   Lee, Sang Hak ^a   Choi, Kyung Il ^b   Koh, Hun Yeong ^b  

^a Chungbuk National University   (South Korea)

^b Korea Institute of Science and Technology   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

CEPHALOSPORIN DERIVATIVE;

ARTICLE; DRUG SYNTHESIS; REACTION ANALYSIS;

EID: 0030583480     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/0040-4039(96)01714-5     Document Type: Article

References (10)

1. 1. Elliot, R. L.; Tackle, A. K.; Tyler, J. W.; White, J. J. Org. Chem. 1993, 58, 6954-6955.
2. 2. Elliot, R. L.; Nicholson, N. E.; Peaker, F. E.; Takle, A. K.; White, J. J. Org. Chem. 1994, 59, 1606-1607.
3. 3. Kang, H.-Y.; Cho, Y. S.; Koh, H. Y.; Chang, M. H. Synlett 1995, 907-908.
4. 4. (a) Ritter, K. Synthesis 1993, 735-762.
5. (b) Farina V.; Kant, J. Synlett 1994, 565-574.
6. 5. For examples see: (a) Lange, G. L.; Gottardo, C. Tetrahedron Lett. 1990, 31, 5985-5988. ; ibid. 1994, 35, 8513-8516. (b) Ho, T.-L. Heterolytic Fragmentation of Organic Molecules; John Wiley & Sons: New York, 1993; pp 81-82.
7. For examples see: (a) Lange, G. L.; Gottardo, C. Tetrahedron Lett. 1990, 31, 5985-5988. ; ibid. 1994, 35, 8513-8516. (b) Ho, T.-L. Heterolytic Fragmentation of Organic Molecules; John Wiley & Sons: New York, 1993; pp 81-82.
8. For examples see: (a) Lange, G. L.; Gottardo, C. Tetrahedron Lett. 1990, 31, 5985-5988. ; ibid. 1994, 35, 8513-8516. (b) Ho, T.-L. Heterolytic Fragmentation of Organic Molecules; John Wiley & Sons: New York, 1993; pp 81-82.
9. 6. Scartazzini, R. Helv. Chim. Acta. 1977, 60, 1510-1521.; Ramirez, F.; Dershowitz, S. J. Org. Chem. 1957, 22, 41-45.
10. Scartazzini, R. Helv. Chim. Acta. 1977, 60, 1510-1521.; Ramirez, F.; Dershowitz, S. J. Org. Chem. 1957, 22, 41-45.