Number | Date | Country | Kind |
---|---|---|---|
2733681 | Jul 1977 | DEX | |
2758875 | Dec 1977 | DEX |
Number | Name | Date | Kind |
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3651046 | Derieg et al. | Mar 1972 |
Entry |
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Harrison et al., "J. Heterocyclic Chemistry", vol. 14, No. 7, pp. 1191-1196 (1977), (Nov.). |
Chemical Abstracts, vol. 88, Item 105281n, abstracting Harrison et al., in "J. Heterocyclic Chemistry", (1977), vol. 14, No. 7, pp. 1191-1196 (English). |