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Letrozole

CHEMBL1444 Phase 4 承認済み Small molecule
Half-Life
—
Bioavailability
—
Protein Binding
—
Molecular Weight
285.3 g/mol
LogP
2.7
Phase
4

A nonsteroidal aromatase inhibitor used to treat hormone receptor-positive breast cancer in postmenopausal women, and studied in other hormone-sensitive conditions. It works by blocking estrogen production to deprive cancer cells of the hormone they need to grow.

分子量

285.3000 g/mol

LogP

2.70

TPSA

78.30 Ų

リピンスキーの五則

適合

治療領域

Ovarian Cancer Pancreatic Cancer Bladder Cancer Thyroid Cancer Endometriosis Cardiovascular Disease Respiratory Disease Pain Management Non-Small Cell Lung Cancer Rheumatoid Arthritis Osteoporosis Chronic Obstructive Pulmonary Disease Alzheimer's Disease Parkinson's Disease Generalized Anxiety Disorder Infectious Disease Gastroesophageal Reflux Disease Inflammatory Bowel Disease Chronic Kidney Disease Non-Alcoholic Fatty Liver Disease Obesity Lymphoma Type 2 Diabetes Breast Cancer Chronic Pain Heart Failure Prostate Cancer Colorectal Cancer

Pharmacokinetics (PK)

Pharmacodynamics (PD)

2D構造

SVG PNG

Cite this structure


                        

                            
                            
                        

                    

                


                
                

                    

                    

                        
Embed this structure

                        

                        

                            
                            
                        

                    

                

                

                
                

                    
SMILES

                    
N#Cc1ccc(C(c2ccc(C#N)cc2)n2cncn2)cc1

                

                

                
                

                    
InChI

                    
InChI=1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H

                

                

                

                    
                    

                        
Molecular Formula

                        
C17H11N5

                    

                    
                    

                        
HBD / HBA

                        
- / 4

                    

                    
                    

                        
回転可能結合数

                        
3

                    

                    
                    
                    

                        
重原子数

                        
22

                    

                    
                

            


            
            

                
                


    
    
        
    
    
    
No targets recorded

    
    
Target interaction data is not yet available for this drug.

    



                
            


            
            

                
                


    
    
        
    
    
    
No interactions recorded

    
    
Drug interaction data is not yet available for this compound.

    



                
            


            
            

                
                


    
    
        
    
    
    
No side effects recorded

    
    
Side effect data is not yet available for this drug.

    



                
            


            
            
            

                
よくある質問

                

                    
                    

                        
                        

                            
A nonsteroidal aromatase inhibitor used to treat hormone receptor-positive breast cancer in postmenopausal women, and studied in other hormone-sensitive conditions. It works by blocking estrogen production to deprive cancer cells of the hormone they need to grow.

                        

                    

                    

                    

                    

                    

                    

                        
                        

                            
Yes, Letrozole is an approved drug. It has reached clinical phase 4. It is classified as a Small molecule.

                        

                    

                

            

            

            
            

            
            

            
            
{# References & Data Sources section for drug detail pages.
   Renders standard pharmacological database links plus the drug's data_sources field. #}


    
References & Data Sources

    
    
        
        
  • 
            
            
                ChEMBL — European Bioinformatics Institute (EBI).
                CHEMBL1444.
                Open-access bioactivity database.
            
        
    • 
        
        
        
  • 
            
            
                PubChem — National Center for Biotechnology Information (NCBI).
                CID 3902.
                Chemical information database.
            
        
    • 
        
        
        
        
    

    
Data aggregated from publicly available pharmacological databases. Last updated 2026-03-04.




        


        
        
    


    



    
医学的免責事項

    

        This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.
    

    

        Data sources:
        ChEMBL,
        PubChem,
        DailyMed.