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Ring Information
    
        
            
                | Rings | 
                Ring Systems | 
                Atoms | 
                Carbons | 
                Nitrogens | 
                Oxygens | 
                Sulfurs | 
            
        
        
            
                | 
                    
                        1                    
                 | 
                
                    
                        1                    
                 | 
                
                    
                        6                    
                 | 
                
                    
                        3                    
                 | 
                
                    
                        2                    
                 | 
                
                    
                        1                    
                 | 
                
                    
                        0                    
                 | 
            
        
    
 
Subset Information
    
        
            
                | Substances | 
                Natural | 
                Purchasable | 
                Annotated | 
                BB
                 | In Man | 
                Last Updated | 
            
        
        
            
                | 
                    
                        View                    
                 | 
                
                    
                        4                    
                 | 
                
                    
                        647                    
                 | 
                
                    
                        0                    
                 | 
                
                    
                        17                    
                 | 
                
                    
                        1                    
                 | 
                2012-03-06 | 
            
        
    
 
 
- 
    
        1-oxa-5,6-diazaspiro[2.4]hept-4-…
        
    
 
- 
    
        3a,4,5,6-tetrahydro-2H-cyclopent…
        
    
 
- 
    
        2,3a,4,5,6,7-hexahydropyrazolo[4…
        
    
 
- 
    
        2,3a,4,5,6,7-hexahydroindazol-3-one
        
    
 
- 
    
        2,3-diazaspiro[4.5]dec-1-en-4-one
        
    
 
- 
    
        2-(cyclopropylmethyl)-2-pyrazoli…
        
    
 
- 
    
        2-cyclopentyl-2-pyrazolin-3-one
        
    
 
- 
    
        2-(1,4,5,6-tetrahydropyrimidin-2…