Number | Date | Country | Kind |
---|---|---|---|
4200259 | Jan 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
5091581 | Seidel | Feb 1992 |
Number | Date | Country |
---|---|---|
0424194 | Sep 1990 | EPX |
0452908 | Apr 1991 | EPX |
3917113 | Nov 1990 | DEX |
Entry |
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German article entitled "Uber substituierte Polyaminopyridine" by Von Walter von Bebenburg et al. Chemiker Zeitung: Sonderdruck 103 (1979) 387-399 pp. 3-15. |