Number | Date | Country | Kind |
---|---|---|---|
76 03603 | Feb 1976 | FRX | |
76 36038 | Nov 1976 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3791789 | Alink | Feb 1974 | |
3957925 | Alink | May 1976 |
Number | Date | Country |
---|---|---|
1,526,768 | Nov 1963 | FRX |
Entry |
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Bottcher et al., Chem. Ber 84, 458-463 (1951). |
Legrand et al., Bull. Soc. Chim. (France), pp. 79-83 (1955). |
Chemistry of Heterocyclic Compound, vol. 21, pt. 1, pp. 382-384 (1966). |