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(11)    Patent No :    AP 1905   

(73) Applicant(s)    PFIZER PRODUCTS INC., Eastern Point Road, Groton,       
            Connecticut 06340,   
(21)    Application No :    AP/P/2002/002543           
(22)    Filing Date :    23.11.2000    United States of America       
(24)    Date of Grant &    20.10.2008           
(45)    Publication :

(30)  Priority Data    (72) Inventors

    (33) Country    (31) Number    (32) Date    BLUMENKOPF Todd Andrew, United States of   
    US    60/170,179    10.12.1999    America       
                FLANAGAN Mark Edward, United States of America   
                MUNCHHOF Michael John, United States of   
                et al       
                (74) Representative   
(84)    Designated State           
    GM  GH   KE    LS   MW  MZ    SL   SD   SZ    GALLOWAY & COMPANY   
    T Z   UG   ZM   ZW               
(51)    International    Classification    A61K 31/365 (2006.01)    A61K 31/445 (2006.01)   
            A61K 31/519 (2006.01)       

(54)    Title

Pyrrolo[2,3 -d] Pyrimidine Compounds.

(57)    Abstract

A compound of formula (I) wherein R1,R2 and R3 are as defined above, which are inhibitors of the enzyme protein kinases such as Janus Kinase 3 and

as such are useful therapy as immunosuppressive agents for organ transplants, xeno transplantation, lupus, multiple scelerosis, rheumatoid arthritis, psoriasis, Type I diabetes and complications from diabetes, cancer, asthma, atopic dermatitis, autoimmune thyroid disorders, ulcerative colitis, Crohn's disease, Alzheimer's disease, Leukemia and other autoimmune

(56)    Documents Cited :    J. of Med. Chem.; US Chem. Soc.; Vol. 39, No. 12.   EP 0 795 556 A


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