The 2-(9, 4, 3) and 3-(10, 5, 3) designs

Smallest defining sets for 2-(9, 4, 3) and 3-(10, 5, 3) designs

A set of blocks which can be completed to exactly one t-(v, k, A) design is called a defining set of that design. A known algorithm is used to determine all smallest defining sets of the 11 non-isomorphic 2-(9,4,3) designs. Nine of the designs have smallest defining sets of eight blocks each; the other two have smallest defining sets of six blocks each. Various methods are then used to find all...

Smallest defining sets for 2-(9, 4, 3) and 3-(10, 5, 3) designs: Corrigendum

3 , 4 - Dihydroxy - 9 , 10 - secoandrosta - l , 3 , 5 ( 10 ) - triene = 9 , 17 dione 4 ,

Kinetic studies with 3,4-dihydroxy-9, IO-secoandrosta1,3,5(10)-triene-9,17-dione-4,5-dioxygenase gave intersecting initial velocity plots that conform to a sequential mechanism. Linear noncompetitive product inhibition patterns were observed with respect to either substrate, indicating the formation of a dead end complex. 4-Isopropyl catechol, a structural analogue of the organic substrate, inh...

SYNTHESIS AND PHARMACOLOGICAL EVALUATION OF 6-CARBETHOXY-5-(3'-BROMOPHENYL)-3-ARYL-2-CYCLOHEXENONES AND 6-ARYL-4-(3'-BROMOPHENYL)-3-OXO-2,3A,4,5-TETRAHYDRO-2H-INDAZOLES

6-Carbethoxy-5-(3'-bromophenyl)-3-aryl-2-cyclohexenones 2a-j were obtained from the1-Aryl-3-(3'-bromophenyl)-2-propene-1-ones 1a-j by Micheal addition of ethyl acetoacetate, followed by internal Claisen condensation. Reaction of 2a-j with hydrazine hydrate afforded the corresponding 6-Aryl-4-(3'-bromophenyl)-3-oxo-2,3a,4,5-tetrahydro-2H-indazoles 3a-j. The structures of newly synthesized compou...

SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF 3-(2’-n-BUTYLBENZOFURAN-3’-YL)-5-ARYL-4, 5-DIHYDRO-1H-PYRAZOLES.

           3-(2’-n-butylbenzofuran-3’-yl)-5-aryl-4, 5-dihydro-1H-pyrazoles (4a-4k) have been synthesized. The synthesized products have been assayed for their antimicrobial activity against Gram+ve,      Gram-ve bacteria and fungi. All the synthesized products were assigned with IR, 1HNMR, Mass Spectra, TLC, and elemental analysis. Some of the products showed moderate activi...