1. , , , Opiates, Academic Press, New York, London 1986, S. 259 ff.
2. (a) , , , , , , , (Sanwa Kagaku Kan Kyusho Co. Ltd.), Jpn. Kokai Tokkyo Koho JP 61,227,580 (9.10. 1986);
3. Synthesis of a New Skeleton, 2,6-Epithio-3-benzazocine
4. Synthesis of 1,2,3,4,5,6-Hexahydro-8-hydroxy-2,6-epithio-3-benzazocine