Number | Name | Date | Kind |
---|---|---|---|
4349378 | Cliff et al. | Sep 1982 | |
4532243 | Tully | Jul 1985 | |
4605433 | Pearson et al. | Aug 1986 | |
4621084 | Takaya et al. | Nov 1986 |
Number | Date | Country |
---|---|---|
0061380 | Sep 1982 | EPX |
951652 | Mar 1964 | GBX |
Entry |
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Ekeley et al., "J. Org. Chem.", vol. 52, 1930, pp. 2026-2028. |
Fajgelj et al., Heterocycles, No. 24, 1986, pp. 379-386. |
Broadbent et al., "J. Chem. Soc., 1965, pp. 3369-3372. |