Number | Date | Country | Kind |
---|---|---|---|
3986/85 | Sep 1985 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3651216 | Ringel et al. | Mar 1972 |
Entry |
---|
Edwards et al., Tetrahedron Letters, vol. 7, No. 40, pp. 4867-4870 (1966). |
Jansen et al., Tetrahedron Letters, vol. 26, No. 49, pp. 6031-6034 (1985). |