申请人:Elpen S.A.
公开号:US06693192B1
公开(公告)日:2004-02-17
The present invention relates to the synthesis and the evaluation of the antioxidant, hypocholesterolemic and hypolipidemic activity of substituted morpholine derivatives of formula (I) in which R1=CH2CH3, R2=CH3, R3, R4=H, R5=C6H5 (compound 1) or R1=CH2CH2CH2ONO2, R2=CH3, R3, R4=H, R5=C6H5 (compound 2) or R1=H, R2—R3=(CH2)4, R4=H, R5=C6H5 (compound 3) or R1=CH2CH2CH3, R2—R3=(CH2)4, R4=H, R5=C6H5 (compound 4) or R1=CH2CH2CH2ONO2, R2—R3=(CH2)4, R4=H, R5=C6H5 (compound 5) or R1=H, R2=CH3, R3—R4=(CH2)4, R5=C6H5 (compound 6) or R1=CH2CH2CH3, R2=CH3, R3—R4=(CH2)4, R5=C6H5 (compound 7) or R1=CH2CH2CH2ONO2, R2=CH3, R3—R4=(CH2)4, R5=C6H5 (compound 8) or R1=CH2CH2CH2ONO2, R2=CH3, R3, R4=H, R5=C6H5 (compound 9) or R1=H, R2=p-NO2—C6H4—CH2CH2, R3, R4=H, R5=C6H5 (compound 10). The 2-hydroxy-morpholine derivatives 3, 6 and 10 are synthesised by the reaction of the appropriate aminoalcohol (22 mmol) and the 2-bromophenylacetophenone or the 2-bromoacetophenone (10 mmol) in ether and acetone for 15 hours at room temperature. Me 2-alkoxy derivatives 1, 4 and 7 are synthesised by the reaction of the respective 2-hydroxy derivative with the appropriate alcohol, in acid medium and reflux. Compounds 2, 5, 8 and 9 are synthesised by the reaction of the respective 2-hydroxy derivative with the 3-bromopropanol in acidic medium and reflux. The 2-(3-bromopropoxy) derivatives thin reacted with silver nitrate in acetonitrile and reflux. The compounds of formula (I) decrease significantly total cholesterol, triglyceride and LDL-cholesterol levels in plasma. The compounds of formula (I) possess potent antioxidant activity. The compounds of formula (I) with the above properties could be useful to the treatment of hypercholesterolemia, hyperlipidemia and atheromatosis.
本发明涉及公式(I)的取代吗啡啶衍生物的合成和抗氧化剂、降胆固醇和降脂作用的评价,其中R1=CH2CH3,R2=CH3,R3、R4=H,R5=C6H5(化合物1)或R1=CH2CH2CH2ONO2,R2=CH3,R3、R4=H,R5=C6H5(化合物2)或R1=H,R2-R3=(CH2)4,R4=H,R5=C6H5(化合物3)或R1=CH2CH2CH3,R2-R3=(CH2)4,R4=H,R5=C6H5(化合物4)或R1=CH2CH2CH2ONO2,R2-R3=(CH2)4,R4=H,R5=C6H5(化合物5)或R1=H,R2=CH3,R3-R4=(CH2)4,R5=C6H5(化合物6)或R1=CH2CH2CH3,R2=CH3,R3-R4=(CH2)4,R5=C6H5(化合物7)或R1=CH2CH2CH2ONO2,R2=CH3,R3-R4=(CH2)4,R5=C6H5(化合物8)或R1=CH2CH2CH2ONO2,R2=CH3,R3、R4=H,R5=C6H5(化合物9)或R1=H,R2=p-NO2-C6H4-CH2CH2,R3、R4=H,R5=C6H5(化合物10)。通过在醚和丙酮中反应适当的氨基醇(22毫摩尔)和2-溴苯乙酮或2-溴乙酰苯(10毫摩尔)15小时,室温下合成了2-羟基吗啡啶衍生物3、6和10。通过在酸性介质和回流中将相应的2-羟基衍生物与适当的醇反应,合成了Me2-烷氧基衍生物1、4和7。化合物2、5、8和9是通过将相应的2-羟基衍生物与3-溴丙醇在酸性介质和回流中反应而合成的。将2-(3-溴丙氧基)衍生物与硝酸银在乙腈和回流中反应。公式(I)的化合物显著降低血浆总胆固醇、甘油三酯和LDL胆固醇水平。公式(I)的化合物具有强大的抗氧化活性。具有上述性质的公式(I)的化合物可能对治疗高胆固醇血症、高脂血症和动脉粥样硬化有用。