SY-008

Primary objective: To evaluate the safety and tolerability of SY-008 capsules after multiple oral administration in patients with type 2 diabetes. Secondary objectives: 1) To evaluate the pharmacokinetic characteristics of SY-008 capsules after multiple oral administration in patients with type 2 diabetes; 2) To evaluate the pharmacodynamic characteristics of SY-008 capsules after multiple oral administration in patients with type 2 diabetes.

Primary objective: To evaluate the safety and tolerability of SY-008 capsules at different doses after a single oral administration in healthy Chinese subjects. Secondary objectives: 1) To evaluate the pharmacokinetic characteristics of SY-008 capsules at different doses after a single oral administration in healthy Chinese subjects. 2) To evaluate the pharmacodynamic characteristics of SY-008 capsules at different doses after a single oral administration in healthy Chinese subjects.