Subba Rao Devineni

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Five process-related impurities were detected in the range of 0.08-0.22% in ticagrelor laboratory batches by HPLC and LC-MS methods. These impurities were named as TIC Imp-I, -II, -III, -IV and -V.(More)
A series of fused tricyclic coumarin derivatives bearing iminopyran ring connected to various amido moieties were developed as potential multifunctional anti-Alzheimer agents for their cholinesterase(More)
A series of new class of P-heterocycle encompassing urea and thiourea derivatives, N-(substitutedphenyl)-N′-(2-oxo-2,3-dihydro-1H-2λ5-[1,3,2]diazaphospholo[4,5-b]pyridin-2-yl)ureas 11a–e/thioureas(More)
Four impurities (Imp-I-IV) were detected using gradient HPLC method in few laboratory batches of acrivastine in the level of 0.03-0.12% and three impurities (Imp-I-III) were found to be known and one(More)
Vildagliptin is a member of a new class of oral anti-diabetic drug. One unknown impurity was identified in the range of 0.01-0.06% in different laboratory batches of vildagliptin along with known(More)
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