摘要:
Production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxy pyrimidines by first reacting diketene and lower alkanoic or cycloalkanoic acid amides in the presence of catalytic amounts of Lewis bases or Lewis or Bronsted acids, followed by treating the N-acetoacetyl (lower) alkanoic or cycloalkanoic acid amide intermediates with ammonia in the presence of acid catalysts.
摘要:
A process for the preparation of phenolic ethylenediamine polycarboxylic acids in predominantly the ortho isomeric form which comprises reacting a phenol compound, ethylenediamine, glyoxylic acid and a base, said phenol compound functioning both as a reactant and as the sole solvent for the reaction system. The product can then be isolated or directly reacted with an iron salt to form the corresponding iron chelate.
摘要:
A series of 5-endo-(quinoline-carbonyloxy)-,(benzothiophene-carbonyloxy)- and (quinoxaline-carbonyloxy)-N[amino-(lower)alkyl]bicyclo[2.2.1]-heptane-2,3-di-endo-carboxylic acid imides has been found to possess excellent prophylactic and therapeutic activity as anti-arrhythmic agents.
摘要:
A series of 5-endo-(benzothiophene-carbonyloxy)-N[amino-(lower)alkyl]bicyclo[2.2.1]-heptane-2,3-di-endo-carboxylic acid imides has been found to possess excellent prophylactic and therapeutic activity as anti-arrhythmic agents.