Meisoindigo(Natura-α; N-Methylisoindigotin; Dian III), a derivative of Indigo naturalis, might induce apoptosis and myeloid differentiation of acute myeloid leukemia (AML).

ME0328 is an inhibitor of PARP3 (IC50 = 0.89 µM), which is a regulator of DNA repair and mitotic progression.

MDV3100 is an androgen-receptor (AR) antagonist with IC50 of 36 nM.

MDL-29951 is a novel glycine antagonist of NMDA receptor activation (Ki=0.14 mM, [3H]glycine binding) in vitro and in vivo.

MDK-5220(Orexin-2 receptor agonist) is the first selective nonpeptidic orexin 2 receptor (OX2R) agonist (OX2R EC50 = 0.023 μM, Emax = 98%; OX1R EC50 = 1.616 μM, Emax = 100%)

Mdivi-1 is a selective cell-permeable inhibitor of mitochondrial division DRP1 (dynamin-related GTPase) and mitochondrial division Dynamin I (Dnm1) with IC50 of 1-10 μM.

MCC950 (CP-456773) sodium is a potent, selective, small-molecule inhibitor of NLRP3 with IC50 of 7.5 nM in BMDMs.

MC1568 is a class II (IIa) HDAC inhibitor selective for HDAC4 and HDAC6

MBX-2982 is a selective, orally-available GPR119 agonist for the treatment of type 2 tiabetes.

Marmesin is a coumarin originally isolated from the mature bark of A. marmelos.

Madrasin inhibits pre-mRNA splicing in vitro and modify splicing of endogenous pre-mRNA.

Mad2 Inhibitor-1 (M2I-1) is a small molecule protein-protein interaction inhibitor targeting the mitotic spindle assembly checkpoint.

macitentan (Actelion-1, ACT-064992) is an orally active, non-peptide dual endothelin (ET)A/B receptor antagonist with IC50 of 0.5 nM/391 nM.

M2698 is a potent dual-inhibitor of p70S6K and Akt that affects tumor growth in mouse models of cancer and crosses the blood-brain barrier.

M 344 enhances the sensitivity of human squamous carcinoma cells to radiation and promotes cell cycle arrest and apoptosis in human endometrial cancer and ovarian cancer cells (ED50 = 2.3 μM).

Lys05 is a new lysosomal autophagy inhibitor which potently accumulates within and deacidifies the lysosome of both cells and tumors, resulting in sustained inhibition of autophagy and tumor growth.

LY411575 is a potent γ-secretase inhibitor with IC50 of 0.078 nM/0.082 nM (membrane/cell-based), also inhibits Notch clevage with withIC50 of 0.39 nM.

LY404039 is an inhibitor for mGluR1(Ki=149 nM) and mGluR2(Ki= 92 nM), which can also inhibit dopamine receptor.

LY364947 is a potent ATP-competitive inhibitor of TGFβR-I with IC50 of 59 nM, shows 7-fold selectivity over TGFβR-II.

LY335979 (Zosuquidar) is a potent modulator of P-glycoprotein-mediated multidrug resistance with Ki of 60 nM.

LY315920 (Varespladib) is a potent and selective human non-pancreatic secretory phospholipase A2 (hnsPLA) inhibitor with IC50 of 7 nM,. Phase 3.

LY310762 is a 5-HT1D receptor antagonist with Ki of 249 nM, having a weaker affinity for 5-HT1B receptor.

LY303511, an inactive analogue of LY294002, is a mTOR inhibitor that did not inhibit PI3-K.

LY3023414 is an oral ATP competitive inhibitor of the class I PI3K isoforms, mTOR and DNA-PK.

LY3009120 is a potent and selective pan-RAF inhibitor with potential anticancer activity.

LY2940680 binds to the Smoothened (Smo) receptor and potently inhibits Hedgehog (Hh) signaling.

LY294002 is a PI3K inhibitor for p110α, p110δ and p110β with IC50 of 0.5 μM, 0.57 μM and 0.97 μM, respectively.

LY2886721 is an BACE inhibitor used for the treatment of Alzheimer's Disease.

LY2874455 is a novel and potent FGF/FGFR inhibitor.

LY2835219 is an orally available cyclin-dependent kinase (CDK) inhibitor that targets the CDK4 (cyclin D1) and CDK6 (cyclin D3) cell cycle pathway, with potential antineoplastic activity.