A compound of formula (I), an isomer, metabolite, or a pharmaceutically acceptable salt or ester thereof is disclosed. Compounds of the invention possess utility as a tissue-selective androgen receptor modulators (SARM) and are useful in hormonal therapy, e.g. in the treatment or prevention of hypogonadism, muscle wasting, osteoporosis, benign prostate hyperplasia, obesity associated with a metabolic syndrome, male and female sexual dysfunction and reduced libido, and androgen decline in aging male or female.
                            本发明揭示了式(I)的化合物、异构体、代谢物或其药学上可接受的盐或酯。本发明的化合物具有组织选择性雄激素受体调节剂(
SARM)的功效,并可用于激素疗法,例如治疗或预防性腺功能减退、肌肉消耗、骨质疏松症、良性前列腺增生症、代谢综合征相关的肥胖、男性和女性性功能障碍和性欲减退,以及老年男性或女性的雄激素下降。