RS-C1001

1. Primary objective: To evaluate the safety and tolerability of RS-C1001 tablets after single and multiple oral doses in healthy Chinese subjects 2. Secondary objectives: (1) To evaluate the pharmacokinetic (PK) characteristics of RS-C1001 tablets after single and multiple oral doses in healthy Chinese subjects (2) To evaluate the effect of food on the PK of RS-C1001 tablets in healthy Chinese subjects (3) To evaluate the pharmacodynamic (PD) characteristics of RS-C1001 tablets after multiple oral doses in healthy Chinese subjects (4) To identify RS-C1001 metabolites in urine and plasma 3. Exploratory objectives: (1) To preliminarily evaluate the relationship between the blood drug concentration and QTc interval of RS-C1001 tablets after single and multiple oral doses in healthy Chinese subjects (2) To preliminarily explore the effect of RS-C1001 tablets on the biomarker FGF21 after multiple oral doses in healthy Chinese subjects