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RISSynthesis and evaluation of antibacterial activity of new derivatives of pyrimido[4,5- e ][1,3,4]oxadiazine
New derivatives of pyrimido[4,5- e ][1,3,4]oxadiazine were
prepared and their antibacterial evaluations were performed
on four different Gram-negative and Gram-positive bacteria....
Synthesis and Antibacterial Evaluations of New Pyridazino[4,3-e][1,3,4]oxadiazines
Several derivatives of the new pyridazino[4,3-e][1,3,4]oxadiazine ring system were prepared, and
their antibacterial evaluations were performed on four different Gram-negative and Gram-positive
bacteria....
Thiazolo[4,5- d ]pyrimidines: synthesis and antibacterial evaluation
The reaction of 4-amino-5-bromo-2-chloro-6-methylpyrimidine
( 1 ) with carbon disulfi de in the presence of KOH in
DMF quantitatively gave 5-chloro-7-methylthiazolo[4,5- d ]
pyrimidine-2 (3 H )-thione ...
Synthesis, characterisation, and in vitro antibacterial evaluation of a new class of 2-substituted-4-methyl-7,8-dihydro-5H-pyrimido[4,5-d]thiazolo[3,2-a] pyrimidines
The reaction of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine with 4,5-dihydrothiazol-2-amine in chloroform led to the formation of 2-chloro-4-methyl-7,8-dihydro-5H-pyrimido[4,5-d]thiazolo[3,2-a]pyrimidine (3). The true ...
Iodine catalysed synthesis and antibacterial evaluation of thieno-[2,3-d]pyrimidine derivatives
A new route via iodine catalysed heterocyclisation of 2-amino-4,5-dimethylthiophene-3-carboxamide with aromatic
aldehydes affording a series of thieno[2,3-d]pyrimidine derivatives in a single step have been developed. ...