4 - indole - 1-yl acid derivatives, their production and their use as inhibitors of alpha1 adrenergic receptors and testosterone 5alpha - reduktasen

摘要

The present invention relates to an indole derivative represented by formula (1) or a salt thereof, and a pharmaceutical containing the derivative or the salt: CHEM Äwherein R1 represents lower alkyl; R2 represents hydrogen or phenyl which may be substituted by at least one lower alkyl, lower alkoxy or a halogen atom; R3 represents hydrogen, lower alkyl, lower alkoxy, or phenylalkyloxy which may be substituted by halogen or lower alkyl; R4 represents hydrogen, lower alkyl or lower alkoxy; R5 represents hydrogen or lower alkyl; and n represents an integer of 1 to 5Ü. This compound has the effects of both blocking alpha 1-adrenergic receptors and inhibiting testosterone 5 alpha -reductases, and is useful as a remedy and/or a preventive for diseases caused by dihydrotestosterone overproduction, such as prostatic hypertrophy, and diseases accompanying the same, such as urination disorder, male pattern alopecia, acne, and so forth.