Number | Date | Country | Kind |
---|---|---|---|
3931326 | Sep 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2575027 | Schmidt | Oct 1949 | |
2687431 | Marschall | Oct 1950 | |
2727062 | Tulagin | Dec 1955 | |
3223727 | Stryker | Dec 1965 |
Number | Date | Country |
---|---|---|
0285972 | Oct 1988 | EPX |
0315045 | May 1989 | EPX |
0315046 | May 1989 | EPX |
Entry |
---|
Organikum 17th Ed., p. 201, 1988. |
Methoden der Organischen Chemie, vol. 11/1; pp. 207-212, H. Glaser et al., "Stickstoff-Verbindungen II", 1957. |