Trametinib is a highly specific and potent MEK1 and MEK2 inhibitor with IC50 of 0.92 nM and 1.8 nM, respectively.

TOK-001 is a multifunctional antiandrogen and CYP17 inhibitor(IC50=47 nM) in castration resistant prostate cancer (CRPC).

Tivantinib (ARQ 197) is the first non-ATP-competitive c-Met inhibitor with Ki of 0.355 μM, little activity to Ron, and no inhibition to EGFR, InsR, PDGFRα or FGFR1/4.

Tipifarnib (IND 58359; R115777) is a potent and specific farnesyltransferase inhibitor with an IC50 of 0.6 nM.

TH-302 is selective hypoxia-activated prodrug targeting hypoxic regions of solid tumors with IC50 of 19 nM, demonstrates 270-fold enhanced cytotoxicity under hypoxia versus their potency under aerobic conditions, stable to cytochrome P450 metabolism.

TG-101348 (SAR302503) is a selective inhibitor of JAK2 with IC50 of 3 nM, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3, TG-101348 also inhibit BRD4 with IC50 of 340 nM.

TG101209 is a selective JAK2 inhibitor with IC50 of 6 nM, less potent to Flt3 and RET with IC50 of 25 nM and 17 nM, ~30-fold selective for JAK2 than JAK3, sensitive to JAK2V617F and MPLW515L/K mutations; TG101209 inhibit BRD4 activity with IC50 of 130 nM.

TAS-120 is a highly potent and selective irreversible FGFR inhibitor, effective in tumors harboring various FGFR gene abnormalities.

Tariquidar (XR9576) is a potent and selective noncompetitive inhibitor of P-glycoprotein with Kd of 5.1 nM.

TAK-733 is a potent and selective MEK allosteric site inhibitor for MEK1 with IC50 of 3.2 nM, inactive to Abl1, AKT3, c-RAF, CamK1, CDK2, c-Met, etc.

SW-044248 is a Novel Inhibitor of Topoisomerase I Is Selectively Toxic for a Subset of Non-Small Cell Lung Cancer Cell Lines.

Substance P antagonists (SPA).

Sotrastaurin(AEB-071) is a potent and selective pan-PKC inhibitor, mostly for PKCθ with Ki of 0.22 nM; inactive to PKCζ.

Sorafenib(BAY 43-9006) is a potent inhibitor of Raf-1 with IC50 values of 6 nM, 22 nM and 90 nM for Raf-1, B-Raf, and VEGFR2 respectively, BAY 43-9006 suppresses both wild-type and V599E mutant BRAF activity in vitro.

Sorafenib Tosylate (Bay 43-9006, Nexavar) is a multikinase inhibitor of Raf-1, B-Raf and VEGFR-2 with IC50 of 6 nM, 22 nM and 90 nM, respectively.

SNS-032(BMS-387032) is a potent inhibitor of cyclin-dependent kinases (cdks) 9, 2 and 7 (IC50 values are 4, 38 and 62 nM respectively).

Sitravatinib (MGCD516) is a novel small molecule inhibitor targeting multiple RTKs involved in driving sarcoma cell growth, including c-Kit, PDGFRβ, PDGFRα, c-Met, and Axl.

SGX-523 is a selective Met inhibitor with IC50 of 4 nM, no activity to BRAFV599E, c-Raf, Abl and p38α.

SGI-1776 is a novel ATP competitive inhibitor of Pim1 with IC50 of 7 nM; 50- and 10-fold selective versus Pim2 and Pim3, also potent to Flt3 and haspin.

Semaxanib (SU5416) is a potent and selective VEGFR(Flk-1/KDR) inhibitor with IC50 of 1.23 μM, 20-fold more selective for VEGFR than PDGFRβ, lack of activity against EGFR, InsR and FGFR.

Selpercatinib is a RET kinase inhibitor extracted from patent WO2018071447A1, Compound Example 163, has an IC50 of 14.0 nM, 24.1 nM, and 530.7 nM for RET (WT), RET (V804M) , and RET (G810R), respectively. Antineoplastic activity.

SCH772984 is a novel, specific inhibitor of ERK1/2 with IC50 of 4 nM and 1 nM, respectively.

SCH 900776 is a selective Chk1 inhibitor with IC50 of 3 nM. It shows 50-fold selectivity against Chk2. Phase 2.

S55746 (BLC201) is a potent, orally active and selective BCL-2 inhibitor, with a Ki of 1.3 nM and a Kd of 3.9 nM. S55746 (BLC201) has antitumor activity with low toxicity[1].

RX518(CK-101) is an orally available third-generation and selective inhibitor of certain epidermal growth factor receptor (EGFR) activating mutations.

Ruxolitinib Phosphate is a potent and selective Janus kinase (JAK1, IC50 = 5.9 nM and JAK2, IC50 = 5.7 nM) inhibitor.

Ruxolitinib is a potent ATP mimetic that inhibits both JAK1 and JAK2 with IC50 values of 2.7 and 4.5 nM, respectively and is relatively less selective for JAK3 (IC50 = 322 nM).

RO4987655(CH-4987655) is an orally active small molecule, targeting mitogen-activated protein kinase kinase 1 (MAP2K1/MEK1 IC50=5.2 nM), with potential antineoplastic activity.

Rigosertib (ON-01910) is a non-ATP-competitive inhibitor of PLK1 with IC50 of 9 nM; shows 30-fold greater selectivity against PLK2 and no activity to PLK3.

Regorafenib (BAY 73-4506, Fluoro-Sorafenib) is a multi-target inhibitor for VEGFR1, VEGFR2, VEGFR3, PDGFRβ, Kit, RET and Raf-1 with IC50 of 13 nM/4.2 nM/46 nM, 22 nM, 7 nM, 1.5 nM and 2.5 nM, respectively.