Number | Date | Country | Kind |
---|---|---|---|
2649/85 | Jun 1985 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
4543361 | Muchowski et al. | Sep 1985 | |
4548951 | Muchowski et al. | Oct 1985 |
Number | Date | Country |
---|---|---|
2927480 | Jan 1980 | DEX |
Entry |
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van Leusen, et al.; Tetrahedron Letters, 52, (1972), pp. 5337-5340. |
Muller; Angewandte Chemie, 61, pp. 178-183, (1949). |