Abstract: The present invention provides a novel 2-pyridyl substituted imidazole derivative, or a pharmaceutically acceptable salt or solvate thereof, which selectively inhibits the transforming growth factor-? (TGF-?) type I receptor (ALK5) and/or the activin type I receptor (ALK4); a pharmaceutical composition comprising same as an active ingredient; and a use of the 2-pyridyl substituted imidazole derivative for the manufacture of a medicament for preventing or treating a disease mediated by ALK5 and/or ALK4 receptors in a mammal.

Abstract: The present invention relates to: a compound selected from the group consisting of a tricyclic compound having the structure of formula I, a pharmaceutically acceptable salt, an isomer, a solvate and a precursor thereof; and a use thereof. The compound effectively controls GPR40, and thus, can be effectively used for the prophylaxis or treatment of diseases associated with GPR40, for example, diabetes and many other diseases.

Abstract: Disclosed are a gonadotropin releasing hormone receptor antagonist and a pharmaceutical composition including the same, which can be useful in preventing or treating a sex hormone-related disease such as endometriosis, amenorrhea, irregular menstruation, uterine myoma, uterine fibroids, polycystic ovarian disease, lupus erythematous, hypertrichosis, precocious puberty, short stature, acne, alopecia, gonadal steroid-dependent neoplasms, gonadotropin-producing pituitary adenoma, sleep apnea, irritable bowel syndrome, premenstrual syndrome, benign prostatic hyperplasia, contraception, and infertility, as well as Alzheimer disease.

Abstract: The present invention relates to: a compound selected from the group consisting of a tricyclic compound having the structure of formula I, a pharmaceutically acceptable salt, an isomer, a solvate and a precursor thereof; and a use thereof. The compound effectively controls GPR40, and thus, can be effectively used for the prophylaxis or treatment of diseases associated with GPR40, for example, diabetes and many other diseases.

Abstract: Disclosed are a gonadotropin releasing hormone receptor antagonist and a pharmaceutical composition including the same, which can be useful in preventing or treating a sex hormone-related disease such as endometriosis, amenorrhea, irregular menstruation, uterine myoma, uterine fibroids, polycystic ovarian disease, lupus erythematous, hypertrichosis, precocious puberty, short stature, acne, alopecia, gonadal steroid-dependent neoplasms, gonadotropin-producing pituitary adenoma, sleep apnea, irritable bowel syndrome, premenstrual syndrome, benign prostatic hyperplasia, contraception, and infertility, as well as Alzheimer disease.

Abstract: The present invention provides a novel 2-pyridyl substituted imidazole derivative, or a pharmaceutically acceptable salt or solvate thereof, which selectively inhibits the transforming growth factor-? (TGF-?) type I receptor (ALK5) and/or the activin type I receptor (ALK4); a pharmaceutical composition comprising same as an active ingredient; and a use of the 2-pyridyl substituted imidazole derivative for the manufacture of a medicament for preventing or treating a disease mediated by ALK5 and/or ALK4 receptors in a mammal.