References
- Weinstein , B. and Pritchard , A. E. 1972 . J. Chem. Soc., Perkin Trans. I , : 1015
- Bramanti , G. and di Paco , G. F. 1961 . Ann. Chim. (Rome) , 51 : 1202
- Karten , M. J. , Schwinn , A. and Oroshnik , W. 1966 . J. Med. Chem. , 9 : 448
- Künzi , H. and Studer , R. O. 1975 . Helv. Chim. Acta. , 58 : 139 During the latter stages of this work, a separate report appeared on the formation of Tac derivatives