Therapeutic agent for male sterility

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/197 (2006.01) A61K 33/26 (2006.01) A61P 15/08 (2006.01)

Patent

CA 2722578

The present invention is intended to provide an agent for treating male infertility which is highly effective to male infertility, and having few side effects. To achieve the object, an agent for treating male infertility comprising .delta.-amino levulinic acid shown by general formula (1), its derivative or salt thereof: R2R1NCH2COCH2CH2COR3 (1) [wherein R1 and R2 independently represent a hydrogen atom, alkyl group, acyl group, alkoxycarbonyl group, aryl group, or aralkyl group; R3 represents a hydroxy group, alkoxy group, acyloxy group, alkoxycarbonyloxy group, aryloxy group, aralkyloxy group or amino group] can be used.

La présente invention concerne un agent thérapeutique pour la stérilité masculine, qui est extrêmement efficace contre la stérilité masculine et présente peu d'effets secondaires. L'agent thérapeutique pour la stérilité masculine contient les ingrédients actifs d'un acide d-aminolévulinique représenté par la formule générale (1), des dérivés de celui-ci ou un sel de celui-ci. (1) R2R1NCH2COCH2CH2COR3 (Dans la formule, R1 et R2 représentent indépendamment un atome d'hydrogène, un groupe alkyle, un groupe acyle, un groupe alcoxycarbonyle, un groupe aryle ou un groupe aralkyle; et R3 représente un groupe hydroxy, un groupe alcoxy, un groupe acyloxy, un groupe alcoxycarbonyloxy, un groupe aryloxy, un groupe aralkyloxy ou un groupe amine.)

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