Number | Date | Country | Kind |
---|---|---|---|
8333624 | Dec 1983 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
4196280 | Umezawa et al. | Apr 1980 | |
4401660 | Kirst | Aug 1983 | |
4439426 | Toscano et al. | Mar 1984 | |
4486584 | Baltz et al. | Dec 1984 |
Entry |
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Majer et al., "Jour. of the American Chemical Soc.", vol. 99, No. 5, 3/1977. |