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US 5,686,485 AGranted
Physiologically active EI-1941 compounds
AssigneeKyowa Hakko Kogyo Co., Ltd.
InventorsTakeo Tanaka, Hidemasa Kondo, Fumito Koizumi, Hiroki Ishiguro, Mayumi Yoshida, Katsuhiko Ando, Yuzuru Matsuda
Life of this patent
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Abstract
The present invention relates to EI-1941 compounds having interleukin-1 production inhibitory activity which are represented by the formula: ##STR1## wherein either of R.sup.1 and R.sup.2 is hydrogen and the other is hydroxy, or R.sup.1 and R.sup.2 together represent oxygen; and R.sup.3 is hydroxy and R.sup.4 is hydrogen, or R.sup.3 and R.sup.4 together represent --0--.
Claims5
EI-1941 compounds which are represented by formula (I):
- ##STR3## wherein either of R.sup.1 and R.sup.2 is hydrogen and the other is hydroxy, or R.sup.1 and R.sup.2 together represent oxygen;
- and R.sup.3 is hydroxy and R.sup.4 is hydrogen, or R.sup.3 and R.sup.4 together represent --O--.
Dependencies are inferred from the claim text.