References
- Lunt , E. and Newton , C. G. 1984 . “Comprehensive Heterocyclic Chemistry,” , Edited by: Boulton , A. J. and McKillop , A. vol. 3 , 260 Oxford : Pergamon .
- McKendry , L. H. US Patent 3 920 641 . 1975 .
- 1976 . C.A. , 84 : 44176
- Fisher , A. , Rohr , W. and Hamprecht , G. Ger. Offen. 2 430 353 . 1976 .
- 1976 . C.A. , 84 : 135728
- Goya , P. , Ochoa , C. , Páez , J. A. and Pfleiderer , W. 1986 . Chem. Scr. , 26 : 607
- Goya , P. , Páez , J. A. and Pfleiderer , W. 1984 . J. Heterocycl. Chem. , 21 : 861
- Pizey , J. S. 1974 . “Synthetic Reagents,” , Vol. 2 , 1 New York : Wiley J. .