Claims
- 1. A compound of the formula: ##STR24## or a pharmaceutically acceptable salt thereof wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are the same or different and represent hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, hydroxy, amino, cyano, nitro, trifluoromethyl, trifluoromethoxy, C.sub.1 -C.sub.6 alkoxy, --O.sub.2 CR', --NHCOR', --COR', --SO.sub.m R', where R' is C.sub.1 -C.sub.6 alkyl and wherein m is 0, 1 or 2; or
- R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 independently represent --CONR'R", or --NR'R" where R' and R" independently represent hydrogen or C.sub.1 -C.sub.6 alkyl; and
- R.sub.p, R.sub.q, and R.sub.s independently represent hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, thioalkoxy, hydroxy, amino, monoalkylamino, dialkylamino, cyano, nitro, trifluoromethyl or trifluoromethoxy.
- 2. A compound according to claim 1, wherein R.sub.p, R.sub.q, and R.sub.s independently represent hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkoxy, provided that at least one of R.sub.p, R.sub.q, and R.sub.s is hydrogen.
- 3. A compound according to claim 1, wherein R.sub.p, R.sub.q, and R.sub.s independently represent hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkoxy.
- 4. A compound according to claim 1, wherein R.sub.p, R.sub.q, and R.sub.s independently represent hydrogen, chloro, methyl, or methoxy, provided that at least one of R.sub.p, R.sub.q, and R.sub.s is not hydrogen.
Parent Case Info
This is a continuation of application Ser. No. 09/994,558, filed Dec. 19, 1997, now U.S. Pat. No. 5,883,257, which is a continuation of application Ser. No. 08/619,351, filed Mar. 21, 1996, now U.S. Pat. No. 5,703,235.
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Number |
Name |
Date |
Kind |
4888353 |
Lednicer et al. |
Dec 1989 |
|
5703235 |
Yuan et al. |
Dec 1997 |
|
5883257 |
Yuan et al. |
Mar 1999 |
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Entry |
Okazaki et al, Chemical Abstracts, vol. 60, No. 3157d1, 1964. |
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Continuations (2)
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Number |
Date |
Country |
Parent |
994588 |
Dec 1997 |
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Parent |
619351 |
Mar 1996 |
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