5-methyl-4- thio

Uracil, 6-dimethoxymethyl-3-methyl-2-thio-synthesis, 3, 113 Uracil, 1,3-dimethyl-dimers, 3, 74 Uracil, 3,6-dimethyl-synthesis, 3, 106, 110 Uracil, 5-fluoro-... 

Uracil, 5-methoxy-6-methoxymethyl-2-thio-synthesis, 3, 134 Uracil, 1-methyl-aminolysis, 3, 91 synthesis, 3, 110 Uracil, l-methyl-5,6-dihydro-synthesis, 3, 110 Uracil, 6-methyl-3-phenyl-synthesis, 3, 110 Uracil, 3-methyi-2-thio-synthesis, 3, 112 Uracil, 6-methyl-2-thio-oxidation, 3, 94 Uracil, 5-nitro-... 

Xanthine, 9-methyl-8-methylthio-2-thio-synthesis, S, 590 Xanthine, 7-methyl-8-phenyl-synthesis, S, 588 Xanthine, 7-methyl-2-thio-synthesis, S, 590 Xanthine, 9-methyl-2-thio-synthesis, 5, 590 Xanthine, 8-methylthio-2-thio-synthesis, S, 590... 

Fig. 3-13. Selectivity factors for the separations of sublibraries of racemic (ethyl 6-methyl-2-oxo-), (ethyl l,6-dimethyl-2-OXO-), (ethyl 6-methyl-2-thio-), and (ethyl 1,6-dimethyl-2-thio) 4-substi-tuted-1,2,3,4-tetrahy-dropyrimidine-5-carboxy-lates. (Reprinted with permission from ref. [55]. Copyright 1999, American Chemical Society.)...

Methylthiouracil Methylthiouracil, 6-methyl-2-thio-2,4-(lH,3H)-pyrimidindione (25.2.3), is synthesized in a completely analogous manner by condensing ethyl acetoacetate with thiourea in the presence of sodium ethoxide [14]. 

Quantum-Chemical Calculations of Analysis Reactivity S-and O-Annes, Generated from 6-Methyl-2-Thio-, 2-Alkyl(Aralkyl)Thiouracils... 

The quantum-chemical method ab-initio investigates also reactionary ability O-aniones, generated of 6-methyl-2-thio-, 2- thio-, 2-alkyl(aralkyl)thiouracils (V a, V b) in reaction SN2 of replacement methyl- and benzylbromides, proceeding under the circuit 2. 

Idopyranoside, methyl 4,6-0-benzyli-dene - 3 - 0 - (ethoxycarbonyl) - 2 - S-methyl-2-thio-a-D-, 120 Idose, 2-amino-2-deoxy-n-, derivatives of, 194... 

H-1,3-BENZOXAZINE-2,4(3H)-DIONE, 6,8-DIBROMO-2-THIO- see DDM820 2H-1,3-BENZOXAZINE-2,4(3H)-DIONE, 6,8-DICHLORO-2-THIO- see DFC300 2H-l,3-BENZOXAZINE-2,4(3H)-DIONE,6-METHYL-2-THIO- seeMPS600... 

METHYLTHIOPURINE RIBOSIDE see MPUOOO 6-METHYL-2-THIO-2,4-(lH3H)PYRIMIDINEDIONE see MPW500... 

Dioxin-4-ones, synthesis of 88YGK596, 88YZ805. 2-Methyl-2-oxy- and 2-methyl-2-thio-4H-l,3-benzodioxin-4-ones, synthesis, properties and prodrug potential of 89ACS213. 

Methyl-2-oxo-l, 2-dihydropyrazine with phosphorus pentasulfide in pyridine at reflux was converted into l-methyl-2-thio-l,2-dihydropyrazine (18) (821,1100), and 3-chloropyrazine 1-oxide with sodium hydrogen sulflde in ethanol at room temperature gave 3-mercaptopyrazine 1-oxide (19) (1035). Whereas 3-chloro-2,5-dimethyipyrazine 1-oxide reacted slowly with thiourea in ethanol, and the use of water in place of ethanol caused some increase in reaction rate, the reaction in 2A sulfuric acid at reflux for 30 minutes gave 3-mercapto-2,5-dimethylpyrazine 1-oxide (85%), and 3-mercapto-2-methylpyrazine 1-oxide was prepared similarly (905). 

The Suzuki coupling of 69 was utilized to prepare 5-substituted uracils as potential antiviral agents [29, 30]. Adduct 70, derived from 69 and 2-bromo-3-methylthiophene, was transformed to the corresponding uracil 71 via acidic hydrolysis. Conveniently, reversal of the coupling partners also resulted in formation of adduct 70, assembled from the Suzuki coupling of 5-bromo-2,4-di-f-butoxypyrimidine (68) and 3-methyl-2-thio-pheneboronic acid. 

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