Synthesis, Anti-inflammatory and Analgesic Activity Evaluation of Some Mercapto Pyrimidine and Pyrimidobenzimidazole Derivatives - Sondhi, Sham M; Sharma, Vinay K; Verma, Rajeshwar P; Singhal, Nidhi; Shukla, Rakesh; Raghubir, Ram; Dubey, Mangal P (Synthesis, 1999)