GOAT-IN-1 is an inhibitor of ghrelin O-acyltransferase (GOAT), which could be useful for the prophylaxis or treatment of obesity, diabetes, hyperlipidemia, metabolic, non-alcoholic fatty liver, steatohepatitis, sarcopenia, appetite control, alcohol/narcotic dependence, Alzheimer’s disease, Parkinson’s disease, cerebrovascular dementia, cerebral apoplexy, cerebral infarction, cardic disease, some kind of tumors.