4-Anilino-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-2-yl hydrosulfide 4-Anilino-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine-2-thiol AIDS-148072 AIDS148072 NSC679231