Number | Date | Country | Kind |
---|---|---|---|
2951201 | Dec 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4179277 | Beck et al. | Dec 1979 | |
4220466 | Patel | Sep 1980 | |
4233058 | Sasse et al. | Nov 1980 |
Number | Date | Country |
---|---|---|
750797 | Nov 1970 | BEX |
19067 | Nov 1980 | EPX |
1567084 | DEX | |
1921341 | DEX |
Entry |
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Iwasaki, Chem. Abst. 86:106471v. |
Iversen et al., Acta Chemica Scandinavica 21, 1967, pp. 279-285. |
Papadopoulos, Jour. Org. Chem. vol. 42, No. 24 (1977), pp. 3925-3929. |
Dirlam et al. J. Heterocyclic Chem. 17, 409-411 1980. |
J. Org. Chem. 42, 3825-3928 (1977). |