Number | Date | Country | Kind |
---|---|---|---|
2637/97 | Nov 1997 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
4026907 | Scott et al. | May 1977 | |
5336779 | Yamamoto et al. | Aug 1994 | |
5552427 | Matsutani et al. | Sep 1996 |
Number | Date | Country |
---|---|---|
0139421 | May 1985 | EPX |
0146228 | Jun 1985 | EPX |
0645383 | Mar 1995 | EPX |
0891974 | Jan 1999 | EPX |
2681323 | Mar 1993 | FRX |
6-239837 | Aug 1994 | JPX |
6-256313 | Sep 1994 | JPX |
685496 | Sep 1993 | CHX |
WO 9220651 | Nov 1992 | WOX |
Entry |
---|
E.F. Godefroi et al., Trav. Chim. Receuil Pays-Bas, 91, 1383, (1972). |
McKillop, "Comprehensive Heterocyclic Chemistry II", vol. 5, (1996), pp. 403 to 406. |