BACKGROUND OF THE INVENTION
Cysteine proteases, such as cathepsins B, L, S, and O.sub.2, have been implicated in a number of diseases, including cancer metastasis and invasion (Clin. Exp. Metastasis 1992, 10, 145-155; Cancer Metastasis Rev. 1990, 9, 333-352), arthritis (Int. J. Biochem. 1993, 25,
BACKGROUND OF INVENTION
Cysteine proteases, such as cathepsins B, H, K, L, S, and O.sub.2, containing a highly reactive cysteine residue with a free thiol group at the active site have been known as playing an important role in certain conditions distinguished by aberrant protein turnover such as:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a novel sulfonamide derivative. More particularly, it relates to a novel sulfonamide derivative or a salt thereof which shows a strong inhibitory activity against cysteine protease such as calpain, cathepsin B,
FIELD OF THE INVENTION
The present invention relates to novel ketone derivatives. More particularly, this invention relates to novel ketone derivatives having a potent inhibitory activity against thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L, calpain or the like.
BACKGROUND OF
The present invention relates to a novel epoxysuccinyl amino acid derivative of the formula ##STR2## wherein R.sup.1 is hydrogen or alkali metal, R.sup.2 is isobutyl, R.sup.3 is hydrogen or benzyloxycarbonyl and n is an integer of 5 to 7.
The prior art discloses E-64, ie.,
BACKGROUND AND BRIEF SUMMARY OF THE INVENTION
The present invention relates to a novel epoxysuccinyl amino acid derivative of the formula ##STR2## wherein R.sup.1 is hydrogen, alkali metal, benzyl or cycloalkyl having 5 to 6 carbon atoms, R.sup.2 is alkyl having 3 to 4 carbon atoms, R.sup.3 is
FIELD OF THE INVENTION
This invention relates to novel aminoketone derivatives and, in particular, to novel aminoketone derivatives and their pharmaceutically acceptable salts which strongly inhibit thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L and calpain or the
This application is a 371 of PCT/JP01/00473 filed 25 Jan. 2001.
TECHNICAL FIELD
The present invention relates to a benzene-fused heteroring derivative.
Particularly, the present invention relates to; 1) a benzene-fused heteroring derivative of formula (I) ##STR2## wherein all symbols have the same
TECHNICAL FIELD
The present invention relates to abenzene-fused heteroring derivative.
Particularly, the present invention relates to; 1) a benzene-fused heteroring derivative of formula (I) ##STR00002## wherein all symbols have the same meanings as hereinafter, and a non-toxic salt thereof, 2) a
FIELD OF THE INVENTION
This invention relates to novel .alpha.-aminoketone derivatives and, in particular, to novel .alpha.-aminoketone derivatives and their pharmaceutically acceptable salts which strongly inhibit thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L and calpain or
اكتب أحد الأعراض أو المرض واقرأ عن الأعشاب التي قد تساعد ، واكتب عشبًا واطلع على الأمراض والأعراض التي تستخدم ضدها. * تستند جميع المعلومات إلى البحوث العلمية المنشورة