1981-1985

36. Townsend, C. A.; “The Stereochemical Fate of Chiral-Methyl Valines in Cephalosporin C Biosynthesis,” Plenary Lecture at the International Research Congress on Natural Products, July, 1985, J. Nat. Prod. 198548, 708–724.

35. Townsend, C. A.; Davis, S. G.; Koreeda, M.; Hulin, B. “A Cationic Model of the Chain-Branching Step in Aflatoxin Biosynthesis,” J. Org. Chem. 198550, 5428–5430.

34. Koreeda, M.; Hulin, B.; Yoshihara, M.; Townsend, C. A.; Christensen, S. B. “Synthesis and Absolute Configuration of (+)-Averufin,” J. Org. Chem. 198550, 5426-5428.

33. Townsend, C. A.; Theis, A. B.; Neese, A. S.; Barrabee, E. B. “Stereochemical Fate of Chiral-Methyl Valine in the Ring Expansion of Penicillin N to Deacetoxycephalosporin C,” J. Am. Chem. Soc. 1985107, 4760–4767.

32. Townsend, C. A.; Ho, M.-f. “Biosynthesis of Clavulanic Acid: Origin of the C3-Unit,” J. Am. Chem. Soc1985107, 1066–1068.

31. Townsend, C. A.; Ho, M.-f. “Biosynthesis of Clavulanic Acid: Origin of the C5-Unit,” J. Am. Chem. Soc. 1985107, 1065–1066.

30. Townsend, C. A.; Christensen, S. B. “Concerning the Role of Nidurufin in Aflatoxin Biosynthesis,” J. Am. Chem. Soc1985107, 270–271.

29. Townsend, C. A.; Salituro, G. M. “Fate of 15N-(p-Hydroxyphenyl)glycine in Nocardicin A Biosynthesis,” J. Chem. Soc. Chem. Commun. 1984, 1631–1632.

28. Townsend, C. A.; Barrabee, E. B. “Stereochemical Investigation of the a-Ketoglutarate-Dependent 3′-Hydroxylation in Cephalosporin Biosynthesis,” J. Chem. Soc., Chem. Commun. 1984, 1586–1588.

27. Schwab, J. M.; Li, W.-b.; Ho, C.-k.; Townsend, C. A.; Salituro, G. M. “Direct Observation by Carbon-13 NMR Spectroscopy of the Regioselectivity and Stoichiometry of ‘Suicide’ Enzyme Inactivation,” J. Am. Chem. Soc. 1984106, 7293–7294.

26. Townsend, C. A.; Christensen, S. B.; Trautwein, K. “Hexanoate as a Starter Unit in Polyketide Biosynthesis,” J. Am. Chem. Soc. 1984106, 3868–3869.

25. Townsend, C. A.; Davis, S. G. “The Regiochemistry of A-Ring-labelled Averufin Incorporation into Aflatoxin B1,” J. Chem. Soc., Chem. Commun.1983, 1420–1422.

24. Townsend, C. A.; Christensen, S. B. “Stable Isotope Studies of Anthraquinone Intermediates in the Aflatoxin Pathway,” A Symposium-in-Print, Tetrahedron 198339, 3575-3582.

23. Townsend, C. A.; Brown, A. M.; Nguyen, L. T. “Nocardicin A: Stereochemical and Biomimetic Studies of Monocyclic β-Lactam Biosynthesis,” J. Am. Chem. Soc. 1983105, 919–927.

22. Townsend, C. A.; Brown, A. M. “Nocardicin A: Biosynthetic Experiments with Amino Acid Precursors,” J. Am. Chem. Soc1983105, 913–918.

21. Townsend, C. A.; Christensen, S. B.; Davis, S. G. “Bisfuran Formation in Aflatoxin Biosynthesis: The Role of Versiconal Acetate,” J. Am. Chem. Soc. 1982104, 6154–6155.

20. Townsend, C. A.; Christensen, S. B.; Davis, S. G. “Bisfuran Formation in Aflatoxin Biosynthesis: The Fate of the Averufin Side Chain,” J. Am. Chem. Soc1982104, 6152–6153.

19. Townsend, C. A.; Nguyen, L. T. “Improved Asymmetric Synthesis of (-)-3-Aminonocardicinic Acid and Further Observations of the Mitsunobu Reaction for β-Lactam Formation in Seryl Peptides,” Tetrahedron Lett. 198223, 4859–4862.

18. Townsend, C. A.; Brown, A. M. “Nocardicin A Biosynthesis: Stereochemical Course of Monocyclic β-Lactam Formation,” J. Am. Chem. Soc.1982104, 1748–1750.

17. Townsend, C. A.; Neese, A. S.; Theis, A. B. “Synthesis of (3R,4S)-and(3R,4R)-[4-2H,3H]Valine. Preparation of Compounds Containing Chiral-Methyl Groups with an Adjacent Asymmetric Centre,” J. Chem. Soc., Chem. Commun. 1982, 116–118.

16. Townsend, C. A.; Davis, S. G.; Christensen, S. B.; Link, J. C.; Lewis, C. P. “Methoxymethyl-Directed Aryl Metalation. A Total Synthesis of (±)-Averufin,” J. Am. Chem. Soc. 1981103, 6885–6888.

15. Townsend, C. A.; Bloom. L. M. “Studies of Methoxymethyl-Directed Metalation,” Tetrahedron Lett. 198122, 3923–3924.

14. Townsend, C. A.; Nguyen, L. T. “Asymmetric, Biogenetically Modeled Synthesis of (-)-3-Aminonocardicinic Acid,” J. Am. Chem. Soc1981103, 4582–4583.

13. Townsend, C. A.; Brown, A. M. “Biosynthetic Studies of Nocardicin A,” J. Am. Chem. Soc. 1981103, 2873–2874.

12. Theis, A. B.; Townsend, C. A. “A Simple, Inexpensive Preparation of Highly Pure Copper (I) Bromide and its Dimethylsulfide Complex,” Synth. Commun198111, 157–166.