Number | Date | Country | Kind |
---|---|---|---|
5-309131 | Dec 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3923709 | Worley | Dec 1975 | |
4078062 | Krapcho | Mar 1978 |
Number | Date | Country |
---|---|---|
0116368 | Aug 1984 | EPX |
0163551 | Dec 1985 | EPX |
9405647 | Mar 1994 | WOX |
Entry |
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Chemical Abstracts, vol. 112, No. 23, Jun. 4, 1990, Abstract No. 216950 M. Takakazu et al "Preparation of 3-oxo-1, 4-benzothiazine derivatives for removal of active oxygen species and for inhibition of lipid peroxide formation" of JP-A-89 287 077 (1989). |