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Thiourea derivatives (1–14), methimazole (15), carbimazole (16), thiouracil (17), methylthiouracil (18), propylthiouracil (19), 6–(3-chlorophenylurenyl) saccharin (20), 6–(3-iodophenylthiourenyl) saccharin (21), 4,5,6,7-tetrahydro- 2-[[(phenylamino)thioxomethyl]amino]-benzo[b]thiophene-3-carboxylic acid derivatives (22–25), 2–(1,3,4-thiadiazol-2-yl) thio acetic acid derivatives (26–29).
