Caffeoylquinic acid derivatives from Bidens parviflora and their antihistamine release activites
	    		
		   		
	    	
    	
    	
   		
        
        	
        		- VernacularTitle:小花鬼针草中咖啡酰奎宁酸类成分及其抑制组胺释放活性
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jue WANG
			        		
			        		;
		        		
		        		
		        		
			        		Naili WANG
			        		
			        		;
		        		
		        		
		        		
			        		Xinsheng YAO
			        		
			        		;
		        		
		        		
		        		
			        		Susumu KITANGAKA
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Bidens parviflora Willd.;
			        		
			        		
			        		
				        		caffeoyl quinic acid;
			        		
			        		
			        		
				        		anti-histamine release
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Traditional and Herbal Drugs
	            		
	            		 2006;37(7):966-970
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	Objective Based on the activities of antihistamine release to study the compounds from Bidens parvi-flora and find biological active compounds. Methods The chemical constituents from B.parviflora were isolated by silica gel and Sphadex LH-20 column chromatographies and purified by preparative HPLC. The chemical structures had been identified by physiochemical properties and spectroscopic methods. Results Six caffeoylquinic acid derivatives were identified as 3, 5-di-O-caffeoylquinic acid ( Ⅰ ),3, 4-di-O-caffeoylquinic acid ( Ⅱ ), 4, 5-di-O-caffeoylquinic acid ( Ⅲ ), 4-O-caffeoylquinic acid ( Ⅳ ), 5-O-caffeoylquinic acid ( Ⅴ ), 4-[3-(3, 4-dihydroxy-phenyl)-acryloyloxy]-2, 3-dihydroxy-2-methyl-butyric acid ( Ⅵ ). Conclusion Compounds Ⅰ - Ⅵ are first obtained from B. parviflora and Ⅵ is new one. Some of the compounds exhibit the activities in antiallergic assays. Moreover, the structure-activity relationships of these compounds have been also discussed in this paper.