Number | Date | Country | Kind |
---|---|---|---|
58-40802 | Mar 1983 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3309359 | Duschinsky et al. | Mar 1967 | |
3562250 | Langen et al. | Feb 1971 | |
3919193 | Mian et al. | Nov 1975 |
Entry |
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Shimada et al, "The Journal of Antibiotics", vol. XXXIV, No. 9, 1981, pp. 1216-1218. |