- Synthesis method of cis-3-hydroxycyclobutylcarboxylic acid
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The invention belongs to the field of organic synthesis, and discloses a synthesis method of cis-3-hydroxycyclobutylcarboxylic acid. The synthesis method comprises the following steps: performing efficient stereoselective reduction on 3-carbonyl-cyclobutanecarboxylate (C1-C6 alkyl ester) into single cis-3-hydroxy-cyclobutanecarboxylate by using a proper reducing agent, and performing a hydrolysisreaction to finally obtain the single cis-3-hydroxy-cyclobutanecarboxylic acid. By the synthesis method, raw materials are easy to obtain, the reaction condition is mild, the stereoselectivity is good, and the yield is relatively high; in addition, post-treatment and purification are easy to operate, and the synthesis method is suitable for industrial scale-up production.
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Paragraph 0033; 0034
(2018/05/01)
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- DIAMINE DERIVATIVES
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A compound represented by formula (1):Q1-Q2-To-N(R1) -Q3-N(R2)-T1-Q4 [wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6- membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 represents the following group: (wherein Q5 is an alkylene group having 1 to 8 carbon atoms, or the like); and T0 and T1 are carbonyl groups or the like], a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after artificial valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.
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Page/Page column 145
(2008/06/13)
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- Diamine derivatives
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A compound represented by the general formula (1): Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4??(1) wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6-membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 is a group in which Q5 is an alkylene group having 1 to 8 carbon atoms, or the like; and T0 and T1 are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.
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- DIAMINE DERIVATIVES
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A compound represented by the general formula (1):Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4 wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6- membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 is a group in which Q5 is an alkylene group having 1 to 8 carbon atoms, or the like; and T0 and T1 are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.
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