Tasocitinib (CP 690550,CP690550) supplier DC Chemicals

Cas No.:	477600-75-2
Chemical Name:	3-((3R,4R)-4-Methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanenitrile
Synonyms:	Tofacitinib free base; CP690550; CP-690550; CP 690550; Tofacitinib. Trade name Xeljanz
SMILES:	C(#N)CC(N1CC[C@H](C)[C@H](N(C)C2N=CN=C3NC=CC3=2)C1)=O
Formula:	C₁₆H₂₀N₆O
M.Wt:	312.37
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:	Tofacitinib is a JAK1/2/3 inhibitor with IC50s of 1, 20, and 112 nM, respectively.
In Vivo:	Animals that are treated with Tofacitinib show a significantly lower production of anti-drug antibodies (ADAs) compare with PEG-treated control mice (for five weeks after initial immunization, p<0.01, n=8). Moreover ADAs become detectable earliest on day 28. A difference of 1000- to 200-fold in titers to SS1P is apparent from days 21 through 35, respectively. Compare to SS1P, mice injected with keyhole limpet hemocyanin (KLH) generate a more rapid antibody response. Yet, the administration of Tofacitinib reduces anti-KLH titers compare to controls (p<0.05 on day 21, p<0.01 on day 28, respectively, n=5). Reductions in titers ranged from 5000- to 250-fold from days 21 through 28, respectively[2]. Based on previous dose-response studies, a daily dose of Tofacitinib of 6.2 mg/kg is selected to provide 80% inhibition of hind paw volume and plasma exposure capable of suppressing the JAK1 and JAK3 signaling pathways for >4 hours[3].
In Vitro:	Tofacitinib (CP-690550) citrate binds potentially at JAK3 and JAK2 as 2.2 nM and 5 nM (Kd). The report includes additional binding for Tofacitinib at Camk1 (Kd of 5,000 nM), DCamkL3 (Kd of 4.5 nM), Mst2 (Kd of 4,300 nM), Pkn1 (Kd of 200 nM), Rps6ka2 (Kin.Dom.2-C-terminal) (Kd of 1,400 nM), Rps6ka6 (Kin.Dom.2-C-terminal) (Kd of 1,200 nM), Snark (Kd of 420 nM), Tnk1 (Kd of 640 nM) and Tyk2 (Kd of 620 nM)[1].

Cat. No.	Product name	Field of application
DC10431	Upadacitinib	Upadacitinib (ABT-494) is a potent and selective Janus kinase (JAK) 1 inhibitor being developed for the treatment of several autoimmune disorders with an IC50 of 43 nM.
DC5165	Tofacitinib (CP-690550) Citrate	Tofacitinib is a novel inhibitor of JAK3 with IC50 of 1 nM, 20- to 100-fold less potent versus JAK2 and JAK1. Phase 3.
DC8736	Tofacitinib	Tofacitinib is a novel inhibitor of JAK3 with IC50 of 1 nM, 20- to 100-fold less potent versus JAK2 and JAK1. Phase 3.
DC10779	PF-06651600	PF-06651600 is a potent JAK3-selective inhibitor with an IC50 of 33.1 nM.
DC8168	Peficitinib（ASP015K,JNJ-54781532）	Peficitinib(ASP015K,JNJ-54781532) is a novel potent JAK inhibitor, which demonstrated potent efficacy in adjuvant-induced arthritis model in rats.
DC7137	Filgotinib(GLPG0634)	Filgotinib (GLPG0634) is a selective, orally available JAK1 inhibitor with anti-inflammatory and antiviral activities. Filgotinib can effectively inhibit the activities of JAK1, JAK2, JAK3 and TYK2 with IC50 values of 10 nM, 28 nM, 810 nM and 116 nM, respectively. Filgotinib also inhibits HIV-1 driven gene transcription and reduces proliferation of HIV-1 infected cells. Filgotinib can be used in the study of rheumatoid arthritis and inflammatory bowel disease.
DC8171	Decernotinib (VX-509,adelatinib)	Decernotinib(VX-509; VRT-831509) is a potent and selective Janus kinase 3 (JAK3) inhibitor with Ki of 2.5 nM; IC50 is 50-170 nM in cellular assays.

Tofacitinib