A series of S-glycosyl and S-alkyl derivatives of 4-amino-3-mercapto-6-(2-(2-thienyl)vinyl)-1,2,4-triazin-5(4H)-one (1) were synthesized using different halo compounds such as preacetylated sugar bromide, 4-bromobutylacetate, 2-acetoxyethoxy-methyl bromide, 3-chloropropanol, 1,3-dichloro-2-propanol, epichlorohydrin, allyl bromide, propargyl bromide, phthalic and succinic acids in POCl3. The str...

methylhistidine), carnosine (ƒÀ-alanylhistidine) and CoA, and it is proposed to function in a limited number of synapses (1). It is well established that ƒÀ-alanine is a metabolite of uracil. Handschumacher (2) originally found that 6-azauridine 5'-phosphate is a competitive inhibitor of orotidine 5'-phosphate decarboxylase. Brody and Westheimer (3) purified orotidine 5'-phosphate decarboxylase...

A novel series of thiazolidinone derivatives, namely 4-{4-dimethylamino-6-[4-oxo-2-phenyl-5-(4-pyridin-2-yl-piperazin-1-ylmethyl)-thiazolidin-3-yl]-[1,3,5]-triazin-2-yloxy}-1-methyl-1H-quinolin-2-ones, have been synthesized from the key intermediate 4-(4-amino-6-dimethylamino-[1,3,5]-triazin-2-yloxy)-1-methyl-1H-quinolin-2-one (5). Compound 5 was condensed with various aldehydes to give Schiff ...

The reaction of 3-mercapto-6-methyl-1, 2, 4-triazin-5 (2H)-one 1 with dimethyl 2a and trimethyl phosphite 3a at 100 C in absence of solvent yields the dimeric product 4 and while the alkylated products 5 and 6 are obtained for reaction with 3a. Methylation of 1 by methyl iodide gives alkylated product 5. Reaction of 1 with diethyl 2b and triethyl phosphite 3b by the same previous conditions yie...

The gas phase relaxation dynamics of photoexcited 5-azacytosine has been investigated by means of SHARC (surface-hopping including arbitrary couplings) molecular dynamics, based on accurate multireference electronic structure computations. Both singlet and triplet states were included in the simulations in order to investigate the different internal conversion and intersystem crossing pathways ...

Bu çalışmada çıkış maddesi olarak siyanür klorür kullanıldı. Siyanür klorür, literatürde verilen metotlardan faydalanılarak asetonlu ortamda farklı klor uçlarından 5-hidroksiizoftalik asit kullanılarak 0 oC bir yönlü (monopodal) 2,4-dikloro-6-(3,5-dikarboksifenoksi)-1,3,5-triazin (MNCHIPA) ve oda sıcaklığında iki (dipodal) 2-kloro-4,6-(2,5-dikarboksifenilfenoksi)-1,3,5-triazin (DPCHIPA) bileşik...