Number | Name | Date | Kind |
---|---|---|---|
3608084 | Matt | Sep 1971 | |
3833731 | Grier et al. | Sep 1974 | |
3873597 | Harmetz et al. | Mar 1975 | |
3877922 | Grier et al. | Apr 1975 |
Number | Date | Country |
---|---|---|
1424943 | Feb 1976 | GBX |
Entry |
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Gershon, et al., J. Med. Chem. 20(4), 606-9, (1977). |