HRN77

Primary Objectives: 1. To evaluate the safety and tolerability of HRN77 tablets after single and multiple oral administrations in healthy participants; 2. To evaluate the effect of food on the pharmacokinetics of HRN77 tablets. Secondary Objectives: 1. To evaluate the pharmacokinetic characteristics of HRN77 tablets after single and multiple oral administrations in healthy participants; 2. To evaluate the metabolic and excretion characteristics of HRN77 tablets in healthy participants; 3. To evaluate the effect of single and multiple administrations of HRN77 tablets on the QTc interval in healthy participants; 4. To evaluate the safety and tolerability of HRN77 tablets administered orally in a postprandial state in healthy participants. Exploratory Objective: To explore the pharmacodynamic parameters after multiple oral administrations of HRN77 tablets in healthy participants.