What is the molecular target of the organism that has a disease area of antiviral?
CREATE TABLE "clinical_pipeline_of_marine_pharmacology" (
  "clinical_status" text,
  "compound_name" text,
  "trademark" text,
  "marine_organism" text,
  "chemical_class" text,
  "molecular_target" text,
  "clinical_trials" text,
  "disease_area" text
);
SELECT "molecular_target" FROM "clinical_pipeline_of_marine_pharmacology" WHERE "disease_area"='antiviral';