The present invention provides a compound of formula (I) in free form or in pharmaceutically acceptable salt form a method for manufacturing the compound of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and pharmaceutical compositions.EL COMPUESTO (R)-7-(2-(1-(4-BUTOXIFENIL)-2-METILPROPAN-2-ILAMINO)-1-HIDROXIETIL)-5-HIDROXIBENZO[D]TIAZOL-2(3H)-ONA; PROCEDIMIENTO DE PREPARACIÓN; COMPOSICIÓN Y COMBINACIÓN FARMACÉUTICA; ÚTILES PARA PREPARAR UN MEDICAMENTO PARA EL TRATAMIENTO O PREVENCIÓN DE LA DISTROFIA MUSCULAR, ATROFIA POR DESUSO, CAQUEXIA O SARCOPENIA.