SELECT COUNT(compound_name) FROM table_12715053_1 WHERE chemical_class = "Depsipeptide" AND clinical_trials_β = "1/7"
Berapa banyak nama senyawa yang mencantumkan kelas kimia depsipeptide dan uji klinis β nilai 1/7?
CREATE TABLE table_12715053_1 (compound_name VARCHAR, chemical_class VARCHAR, clinical_trials_β VARCHAR)