Number | Date | Country | Kind |
---|---|---|---|
3220438 | May 1982 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3669969 | Lunn | Jun 1972 | |
3905976 | Hardtmann | Sep 1975 | |
3963720 | Hardtmann | Jun 1976 | |
3984556 | Hardtmann | Oct 1976 |
Entry |
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Lunn, et al., "J. Het. Chem.", vol. VIII, 1971, pp. 141-147. |