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364. The senecio alkaloids. Part III. The structure of retrorsine and isatidine, and the isomerism of retronecic acid and isatinecic acid . Stuart M. H. Christie, Meyer Kropman, Ernest C. Leisegang, Frank L. Warren
, J. Chem. Soc.
, 1949
, 1700
141. The Senecio alkaloids. Part VII. The structure of retrorsine and isatidine: the ester groupings . Ernest C. Leisegang, Frank L. Warren
, J. Chem. Soc.
, 1950
, 702
Dihydropyrrolizine derivatives from unsaturated pyrrolizidine alkaloids . A. R. Mattocks
, J. Chem. Soc. C
, 1969
, 1155
Application of 2 H n.m.r. Spectroscopy to study the incorporation of 2 H-labelled putrescines into the pyrrolizidine alkaloid retrorsine . Jatinder Rana, David J. Robins
, J. Chem. Soc., Perkin Trans. 1
, 1986
, 983
14. The Senecio alkaloids. Part VIII. The occurrence and preparation of the N -oxides. An improved method of extraction of the senecio alkaloids . Mattheus J. Koekemoer, Frank L. Warren
, J. Chem. Soc.
, 1951
, 66
Application of 2 H n.m.r. spectroscopy to study the incorporation of enantiomeric [2-2 H]-labelled putrescines into the pyrrolizidine alkaloid retrorsine . Ellen K. Kunec, David J. Robins
, J. Chem. Soc., Perkin Trans. 1
, 1987
, 1089
Isomerisation of the ethylidene group in the acid moiety of retrorsine . A. R. Mattocks
, J. Chem. Soc. C
, 1968
, 225
Stereochemistry of pyrrolizidine alkaloid biosynthesis: incorporation of chiral[1-2 H]putrescines into retrorsine . Jatinder Rana, David J. Robins
, J. Chem. Soc., Chem. Commun.
, 1984
, 517
109. The senecio alkaloids. Part II. Isatinecine . Ernest C. Leisegang, Frank L. Warren
, J. Chem. Soc.
, 1949
, 486
Notes . J. R. Turvey, J. M. Evans, V. P. Bhavanandan, G. P. Wannigama, P. Biddle, E. S. Lane, J. L. Willans, E. S. Swinbourne, F. Giral, L. Rodriguez Hahn, G. B. Hargreaves, R. D. Peacock, R. Schoental, R. C. Cambie, G. R. Nicholson
, J. Chem. Soc.
, 1960
, 2366