84446-03-7Relevant academic research and scientific papers
Thiazolidinedione derivatives, their production and use
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, (2008/06/13)
Thiazolidinedione derivatives of the general formula: STR1 [wherein R1 is hydrogen or a hydrocarbon residue or heterocyclic residue which may each be substituted; R2 is hydrogen or lower alkyl which may be substituted by hydroxyl group; X is an oxygen or sulfur atom; Z is a hydroxylated methylene or carbonyl; m is 0 or 1; n is an integer of 1 to 3; L and M represent independently a hydrogen atom or L and M combine with each other to cooperate jointly to form a linkage] and their salts, which are novel compounds, possess blood-glucose and blood-lipid lowering actions in mammals, and are of value as a therapeutic agent for diabetes and therapeutic agent for hyperlipemia.
Ring-transformation of 1,2,4-Oxadiazines. Raney Nickel Hydrogenation of Z-3-Aryl-5,6-dihydro-5-(substituted)methylene-4H-1,2,4-oxadiazine Derivatives
Tabei, Katsumi,Kawashima, Etsuko,Takada, Toyozo,Kato, Tetsuzo
, p. 569 - 574 (2007/10/02)
Raney nickel hydrogenation of Z-3-aryl-5-(ethoxycarbonyl)methylene-5,6-dihydro-4H-1,2,4-oxadiazine (1a-c) affords 2-aryl-6-hydroxymethyl-4-pyrimidinone (2) and ethyl (2-aryl-4-oxazolyl)acetate (3).A similar hydrogenation of Z-5-(arylcarbamoyl)methylene-5,
RING-TRANSFORMATION OF 1,2,4-OXADIAZINE DERIVATIVES INTO 4-HYDROXYPYRIMIDINE DERIVATIVES: CATALYTIC HYDROGENATION OF 3-ARYL-5-ETHOXYCARBONYLMETHYLENE-5,6-DIHYDRO-4H-1,2,4-OXADIAZINE DERIVATIVES
Tabei, Katsumi,Kawashima, Etsuko,Takada, Toyozo,Kato, Tetsuzo
, p. 2061 - 2066 (2007/10/02)
Catalytic hydrogenation of 3-aryl-5-ethoxycarbonylmethylene-5,6-dihydro-4H-1,2,4-oxadiazine derivatives (1) is described.The method leads to new synthesis of 2-aryl-4-hydroxypyrimidine derivatives (3) involving cyclization of ethyl 3-benzimidoylimino-4-hydroxybutanoate derivatives (2) by the elimination of ethanol.Nickel catalyzed hydrogenation of 1 gave ethyl 2-aryl-4-oxazoylacetate (4) as a by-product besides product 3.
