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TECHNICAL FIELD
The present invention relates to a novel agent or composition for use as a muscle-strengthening drug, an anti-inflammatory drug, an antiasthmatic, an antidiarrheal, an antidepressant, or a drug for the treatment of secondary diseases following cerebral infarction (human stroke
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated at LTB.sub.4), LTC.sub.4, LTD.sub.4 and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated as LTB.sub.4), LTC.sub.4, LTD.sub.4 and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated as LTB.sub.4), LTC.sub.4, LTD.sub.4, and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated as LTB.sub.4), LTC.sub.4, LTD.sub.4 and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes areLeukotriene B.sub.4 (abbreviated at LTB.sub.4), LTC.sub.4, LTD.sub.4 and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated at LTB.sub.4), LTC.sub.4, LTD.sub.4 and LTE.sub.4. The biosynthesis of these leukotrienes begins
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated as LTB.sub.4), LTC.sub.4, LTD.sub.4, and LTE.sub.4. The biosynthesis of these leukotrienes begins
CROSS-REFERENCE
The compounds of formula I' are described in U.S. Ser. No. 951,630, filed Sep. 25, 1992 now U.S. Pat. No. 4,308,850.
BACKGROUND OF THE INVENTION
European Patent Applications 166,591 and 275,667 disclose a series of indole-based compounds with activity as prostaglandin antagonists and
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated at LTB.sub.4), LTC.sub.4, LTD.sub.4, and LTE.sub.4. The biosynthesis of these leukotrienes begins
CROSS-REFERENCE
The hydroxyacid forms of the present lactones are the subject of a U.S. patent application, attorney docket no. 18761, U.S. Ser. No. 07/936,810, now U.S. Pat. No. 5,252,599, filed on even date herewith, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
The
CROSS-REFERENCE
The hydroxyacid forms of the present lactones are the subject of a co-pending U.S. patent application, attorney docket no. 18812, Ser. No. 07/936,811, filed on even date herewith, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
The leukotrienes constitute a
The hydroxyacid forms of the present lactones are the subject of a co-pending U.S. patent application U.S. Ser. No. 834,912, filed on even date herewith, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
The leukotrienes constitute a group of locally acting hormones, produced in
BACKGROUND
The leukotrienes constitute a group of locally acting hormones, produced in living systems from arachidonic acid. The major leukotrienes are Leukotriene B.sub.4 (abbreviated as LTB.sub.4), LTC.sub.4, LTD.sub.4, and LTE.sub.4. The biosynthesis of these leukotrienes begins with the action
BACKGROUND OF THE INVENTION
U.S. Pat. No. 5,565,473 discloses the compound of the formula (a): ##STR2## now generally known as montelukast sodium. Montelukast sodium is a leukotriene antagonist and is currently undergoing clinical trials for the treatment of chronic asthma.
PCT Published Application