3-Methyl-3,4,5,6-tetrahydro-2H-cyclopenta[d][1,3]thiazol-2-one 91982-68-2 AIDS-124417 AIDS124417 NSC29851 {2H-Cyclopenta[d]thiazol-2-one,} 3,4,5,6-tetrahydro-3-methyl-