Number | Date | Country | Kind |
---|---|---|---|
4201308 | Jan 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
5087764 | Rieffenrath et al. | Feb 1992 |
Number | Date | Country |
---|---|---|
0238272 | Sep 1987 | EPX |
0440082-A2 | Aug 1991 | EPX |
Entry |
---|
Ladd, David L. et al., J. Org. Chem., 1981, vol. 46, pp. 203-206. |