Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many compound names list a chemical class of depsipeptide and a clinical trials β value of 1/7?

### Inputs:
table_name: table, columns: ['Clinical Status', 'Compound Name', 'Trademark', 'Marine Organism α', 'Chemical Class', 'Molecular Target', 'Clinical Trials β', 'Disease Area']

### Response:
SELECT COUNT Compound Name FROM table WHERE Chemical Class = Depsipeptide AND Clinical Trials β = 1/7