References
- Pettit , G. R. , Einck , J. J. , Brown , P. , Harvey , T. B. , Ode , R. H. and Pase , C. P. in press . J. Nat. Prod. , Contribution 68 in the series Antineoplastic Agents. For part 67 see
- Dauben , W. G. and Hart , D. J. 1977 . J. Am. Chem. Soc. , 99 : 7307 For leading references and total synthetic methods, consult:
- Hardegger , E. , Plattner , P. A. and Blank , F. 1944 . Helv. Chim. Acta , 27 : 793
- Singh , K. P. , George , H. and Saksena , S. S. 1963 . Indian J. Chem., J. , : 498
- Finnegan , R. A. and Bachman , P. L. 1965 . J. Org. Chem. , 30 : 4145
- Inhoffen , H. H. , Radscheit , H. , Stache , U. and Koppe , V. 1965 . Justus Liebigs Ann. Chem. , 684 : 24
- Tomboulian , P. and Stehower , K. 1968 . J. Org. Chem. , 33 : 1509