Number | Date | Country | Kind |
---|---|---|---|
89 07532 | Jun 1989 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
2798869 | Druey et al. | Jul 1957 | |
4238490 | Powers et al. | Dec 1980 | |
4561881 | Labovitz et al. | Dec 1985 | |
4661145 | Fujimoto | Apr 1987 | |
4672063 | Jasserand et al. | Jun 1987 |
Number | Date | Country |
---|---|---|
7806494 | Oct 1978 | FRX |
Entry |
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Staehelin et al., Chem. Abstr. vol. 51, entry 4380dt (1957). |
S. Plescia et al., J. Heterocyclic. Chem. 18, 333-334 (1981). |
A. Staehelin et al., Helv. Chim. Acta 39, 1741-1754 (1956). |