Abstract:
PURPOSE: A new oxazole derivative obtained by using amide as a starting material is provided which has a strong antibacterial effect on plant pathogenic bacteria with a small amount, for example Pyricularia oryzae Cavera, Rhizoctonia SolaniAG-1, Botrytis cinerea KCI, Phytophthora infestans or the like. CONSTITUTION: An amid compound(formula II) is refluxed in a solvent of dichloroacetone and ethanol to give chloromethyl oxazole(formula III). A chlorine atom of the chloromethyl oxazole is substituted to an iodine atom by use of sodium iodide and then reacted with 2-(2-hydroxyphenyl)-3-methoxy acrylic acid methylester(formula IV)(in case of A=C) or 2-methoxyimino-(2-hydroxyphenyl)-acetic acid methylester(formula IV)(in case of A=N) to produce an oxazole derivative(formula I).
Abstract:
PURPOSE: A novel agricultural and horticultural bactericide containing a hydrazine dicarboxylic ester derivative is provided, which has excellent bactericidal property selectively to vegetable pathogen. CONSTITUTION: An agricultural and horticultural bactericide comprises a hydrazine dicarboxylic ester derivative having the following formula I, wherein R1 and R2 are same or different and represent hydrogen atom, C1-C6 alkyl, C1-C6 haloalkyl having 1 to 3 of halogen substituents, phenyl, or benzoyl; R3 and R4 are same or different and represent phenyl, phenyl substituted with a substituent selected from the group consisting of halogen atom, C1-C6 alkyl, C1-C6 alkoxy and nitro, benzyl, or cyclohexyl.
Abstract:
The present invention relates to 4-(benzimidazole-2-ylamino)pyrrolidine derivatives of chemical formula 1 or pharmaceutically acceptable salts thereof; a pharmaceutical composition containing the same as an active ingredient for preventing and treating neurodegenerative diseases; and an inhibitor composition of the activation of beta-secretase (BACE), containing the same as an active ingredient. The 4-(benzimidazole-2-ylamino)pyrrolidine derivatives according to the present invention suppresses the activation of BACE and generation of beta-amyloid proteins which cause damage to nerve cells, thereby effectively preventing or treating neurodegenerative diseases such as Alzheimer’s disease and Down syndrome.
Abstract:
본 발명은 사이클로알킬 피롤 및 아졸을 가지는 피페라진 유도체 및 그의 염, 및 이를 포함하는 정신질환의 예방 또는 치료용 약학 조성물에 관한 것으로, 본 발명의 피페라진 유도체는 도파민 D4 수용체에 대하여 우수한 길항 작용을 나타내므로 정신질환의 예방 또는 치료제로서 유용하게 사용될 수 있다:
상기 식에서, R 1 은 , 이고 (여기서, X는 수소, 할로겐, C 1-6 알킬, C 1-6 알콕시 또는 사이아노이고; R은 수소, 또는 할로겐, 나이트로, C 1-6 알킬, C 1-6 알콕시 또는 사이아노로 치환되거나 치환되지 않은 페닐이다.); R 2 는 할로겐, C 1-6 알킬, C 1-6 알콕시 또는 사이아노로 치환되거나 치환되지 않은 페닐 또는 벤질이고; n은 1 내지 3의 정수이다.