Discovery of the Macrocycle (9E)-15-(2-(Pyrrolidin-1-yl)ethoxy)-7,12,25-trioxa-19,21,24-triaza-tetracyclo[18.3.1.1(2,5).1(14,18)]hexacosa-1(24),2,4,9,14(26),15,17,20,22-nonaene (SB1578), a Potent Inhibitor of Janus Kinase 2/Fms-LikeTyrosine Kinase-3 (JAK2/FLT3) for the Treatment of Rheumatoid Arthritis
摘要:
Herein, we describe the synthesis and SAR of a series of small molecule macrocycles that selectively inhibit JAK2 kinase within the JAK family and FLT3 kinase. Following a multiparameter optimization of a key aryl ring of the previously described SB1518 (pacritinib), the highly soluble 141 was selected as the optimal compound. Oral efficacy in the murine collagen-induced arthritis (CIA) model for rheumatoid arthritis (RA) supported 141 as a potential treatment for autoimmune diseases and inflammatory disorders such as psoriasis and RA. Compound 141 (SB1578) was progressed into development and is currently undergoing phase 1 clinical trials in healthy volunteers.
Discovery of the Macrocycle (9<i>E</i>)-15-(2-(Pyrrolidin-1-yl)ethoxy)-7,12,25-trioxa-19,21,24-triaza-tetracyclo[18.3.1.1(2,5).1(14,18)]hexacosa-1(24),2,4,9,14(26),15,17,20,22-nonaene (SB1578), a Potent Inhibitor of Janus Kinase 2/Fms-LikeTyrosine Kinase-3 (JAK2/FLT3) for the Treatment of Rheumatoid Arthritis
作者:Anthony D. William、Angeline C.-H. Lee、Anders Poulsen、Kee Chuan Goh、Babita Madan、Stefan Hart、Evelyn Tan、Haishan Wang、Harish Nagaraj、Dizhong Chen、Chai Ping Lee、Eric T. Sun、Ramesh Jayaraman、Mohammad Khalid Pasha、Kantharaj Ethirajulu、Jeanette M. Wood、Brian W. Dymock
DOI:10.1021/jm201454n
日期:2012.3.22
Herein, we describe the synthesis and SAR of a series of small molecule macrocycles that selectively inhibit JAK2 kinase within the JAK family and FLT3 kinase. Following a multiparameter optimization of a key aryl ring of the previously described SB1518 (pacritinib), the highly soluble 141 was selected as the optimal compound. Oral efficacy in the murine collagen-induced arthritis (CIA) model for rheumatoid arthritis (RA) supported 141 as a potential treatment for autoimmune diseases and inflammatory disorders such as psoriasis and RA. Compound 141 (SB1578) was progressed into development and is currently undergoing phase 1 clinical trials in healthy volunteers.