Number | Name | Date | Kind |
---|---|---|---|
3787364 | Wirth et al. | Jan 1974 | |
3821164 | Relles et al. | Jun 1974 | |
3838097 | Wirth et al. | Sep 1974 | |
3852242 | White | Dec 1974 | |
4024110 | Takekoshi | May 1977 |
Entry |
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Caswell et al., J. Heterocyclic Chem., vol. 3, 1966, pp. 333-335. |
Fowler et al., J. Heterocyclic Chem., vol. 10, 1973, pp. 107-108. |