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Expert Periodical experiences supply systematic and particular assessment assurance of growth within the significant parts of chemical learn. Written through specialists of their professional fields the sequence creates a different provider for the lively study chemist, delivering standard serious in-depth debts of development specifically parts of chemistry.

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186. R . Voigt and P. Zier, Pharmazie, 1972, 27, 773. T. Fehr, W. Acklin, and D. Arigoni, Chem. , 1966,801 ; H. G. Floss, U. Hornemann, N. Schilling, D. Groger, and D. Erge, Chem. , 1967, 105. H. G . Floss, G . P. Basmadjian, M. Tcheng, D. Groger, and D. Erge, Lloydia, 1971,34, 446; R. B. Herbert, in ref. 2, p. 7. T. Ohashi, H. Takahashi, and M. Abe, Nippon N6gei Kagaku Kaishi, 1972,46, 5 3 5 . K. Mothes, K. Winkler, D. Groger, H. G. Floss, U. Mothes, and F. Weygand, Tetrahedron Letters, 1962,933; R.

Virtanen and P. K. Hietala, Acta Chem. , 1960, 14, 499, 502. J . A. Klun, C. L. Tipton, and T. A. Brindley, J . Econ. , 1967, 60, 1529. R. M. Couture, D. G. Routley, and G. M. Dunn, Physiol. , 1971,1, 515. J. E. Reimann and R. U . Byerrum, Biochemistry, 1964, 3, 847. C. L. -C. Wang, F. -C. -C. L. Tu, and R. R. Husted, Phyrochemistry, 1973, 12, 347. Biosynthesis 45 I R (163) R = OH (164) R = H shikimic acid and the benzoxazinones. The results are that whereas both ["NIand [l-'4C]-anthranilic acids are efficient precursors (low dilution of isotope), [3H]-3-hydroxyanthranilic acid and ['4C]-o-aminophenol were not incorporated even when inhibitors for breakdown of o-aminophenol were present.

Staunton, and A. R. Battersby, Chem. , 1971, 1154; J . Staunton, in ref. 31, p. 16. C. Fuganti and M. Mazza, Chem. , 1971, 1388; R. B. Herbert, in ref. 2, p. 21. C. Fuganti, Tetrahedron Letters, 1973, 1785. 26 The Alkaloids (96) Ismine HO 0 (97) show that it is a precursor for ismine too. [6,10-3H, ; 12-'4C]Noroxomaritidine was incorporated into ismine (96) in Sprekeliaformosissima with loss of the 14C label and half the tritium originally present at C-6 which indicates, respectively, that C-12 is not retained as the N-methyl group of ismine and that hydrogen removal from C-6 of noroxomaritidine (99)was likely to be stereospecific.

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Alkaloids Volume 4: Specialist Periodical Rep (Specialist Periodical Reports) (v. 4) by J.Edwin Saxton, etc.

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