Number | Date | Country | Kind |
---|---|---|---|
42 03 072.2 | Feb 1992 | DEX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/EP93/00179 | 1/27/1993 | 9/30/1993 | 9/30/1993 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO93/15061 | 8/5/1993 |
Number | Name | Date | Kind |
---|---|---|---|
2463264 | Graenacher et al. | Mar 1949 | |
3324050 | Joo et al. | Jun 1967 | |
3536730 | Baron et al. | Oct 1970 | |
3586673 | Bloom et al. | Jun 1971 | |
3655632 | Ohfuji et al. | Apr 1972 | |
4263441 | Pintschovius et al. | Apr 1981 | |
4309551 | Schonberger et al. | Jan 1982 | |
4585875 | Heiss | Apr 1986 |
Number | Date | Country |
---|---|---|
0470661 | Jan 1951 | CAX |
1450505 | Aug 1966 | FRX |
0445957 | Feb 1950 | ITX |
1124558 | Aug 1968 | GBX |
Entry |
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K. K. Preobrazhenskii, et al., "2-Alkylbenzimidazoles and their sulfo derivatives", Chemical Abstracts, vol. 84, No. 7, Abstract No. 30963t (Aug. 14, 1976), p. 454. |
L. S. Efros, "Imidazole derivatives. VII. Preparation of sulfonic acids of benzimidazole by baking method", Chemical Abstracts, vol. 48, see Column 4524, (1953). |