Number | Date | Country | Kind |
---|---|---|---|
2635250 | Aug 1976 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3530187 | Shryne | Sep 1970 | |
3670032 | Romanelli | Jun 1972 | |
3691249 | De Young | Sep 1972 | |
3769352 | Romanelli | Oct 1973 | |
3925497 | Josey et al. | Dec 1925 | |
3992456 | Atkins et al. | Nov 1976 | |
4021383 | Cuscurida et al. | May 1977 |
Number | Date | Country |
---|---|---|
1248593 | Oct 1971 | GBX |
1354507 | May 1974 | GBX |
Entry |
---|
Takahashi et al. I, Bull. Chem. Soc, Japan, 41, pp. 454-460 (1968). |
Takahashi et al. II, Tetrahedron Letters, No. 26, pp. 2451-2453, 1967. |