| Number | Date | Country | Kind |
|---|---|---|---|
| 8-353818 | Dec 1996 | JP | |
| 9-305055 | Oct 1997 | JP |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP97/04593 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO98/27053 | 6/25/1998 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3655693 | Shen et al. | Apr 1972 | A |
| 5397798 | Fitch et al. | Mar 1995 | A |
| Number | Date | Country |
|---|---|---|
| 5916871 | Jan 1984 | JP |
| 272150 | Mar 1990 | JP |
| 9533461 | Dec 1995 | WO |
| 9603380 | Feb 1996 | WO |
| 9606822 | Mar 1996 | WO |
| 9611902 | Apr 1996 | WO |
| Entry |
|---|
| Supplemental European Search Report dated Nov. 19, 2001. |
| Justus Liebigs Ann. Chem. (1909), 367, 133. |
| Khim. Geterotsikl. Soedin (1974), (6), 760. |
| Khim. Geterotsikl. Soedin (1972), (10), 1341. |
| Khim. Geterotsikl. Soedin (1972), (5), 616. |
| Khim. Geterotsikl. Soedin (1976), (5), 641. |
| Khim. Geterotsikl. Soedin (1971), (7), 1028. |
| Khim. Geterotsikl. Soedin (1970), (12), 1597. |