An orally active, irreversible inhibitor of protein disulfide isomerase (PDI), forming a covalent bond with the active site cysteines of PDI.

An orally available, brain penetrant p75NTR ligand that blocks p75-mediated cell death, also increases proliferation and survival of hippocampal neural progenitors.

An oxazolidinone antibiotic that possesses potent antimicrobial activity in vitro and in vivo..

An STAT3 inhibitor that selectively targets the DNA-binding domain of STAT3, without affecting the activation and dimerization of STAT3.

AN-2728 is a topically administered, boron-containing, anti-inflammatory compound that inhibits PDE4 activity and thereby suppresses the release of TNFalpha, IL-12, IL-23 and other cytokines.

AN3365 is a first-in-class antibiotic that demonstrates potent activity across a wide spectrum of Gram-negative bacteria, including those resistant to many other antibiotics.

ANA-12 is a potent and selective TrkB antagonist with anxiolytic and antidepressant activity in mice.

Anacardic acid inhibits the histone acetyltransferase (HAT) activity of the transcription co-activators p300 and p300/CREB-binding protein-associated factor (pCAF) with IC50 values of 8.5 and 5 µM, respectively.

Anacetrapib (MK0859) is a potent, selective, reversible rhCETP and mutant CETP(C13S) inhibitor with IC50 of 7.9 nM and 11.8 nM, increases HDL-C and decreases LDL-C, does not increase aldosterone or blood pressure. Phase 3.

Anamorelin(RC1291; ONO-7643) is a synthetic orally active ghrelin receptor agonist which is under development for the management of non-small lung cancer associated cachexia/anorexia.

Anastrozole is known to inhibit the CYP19 enzyme (aromatase, IC50 = 15 nM) that converts androgens to estrogens. Anastrozole has been seen to reversibly bind to the CYP19 enzyme through competitive inhibition.

AnCoA4 (AnCoA-4, AnCoA 4) is a potent Orai1 channel inhibitor that inhibits store-operated calcium (SOC) with EC50 of 0.88 uM.

Andarine (S-4) is an investigational selective androgen receptor modulator (SARM) and an active partial agonist.

Anidulafungin

Anle138b is a novel oligomer modulator.

Maytansinol inhibits microtubule assembly and induces microtubule disassembly in vitro. Target: Microtubule/Tubulin in vitro: Maytansinol disrupts the mitotic spindle and prevents mitotic exit in Drosophila. Maytansinol reduces the growth and/or survival of HCT116 cells in a dose-dependent manner and that the effect was more severe for p53+/+ than for p53-/- cells at both low and high doses. Maytansinol inhibits the growth of HCT116 human colon cancer cells. Maytansinol induces apoptosis in imaginal discs of wild-type larvae but not p53 mutant larvae. This parallels the finding in human HCT116 cells, in which Maytansinol was more effective when p53 was present, at least at some doses. Maytansinol induces apoptosis in imaginal discs of wild-type larvae but not p53 mutant larvae at 24 hours after exposure to drug.

Ansamitocin P-3, a potent anti-tumor maytansinoid found in Actinosynnema pretiosum, is a maytansine analog which displays potent cytotoxicity against the human solid tumor cell lines A-549 and HT-29.

ANT431 is a novel potent metallo-β-lactamase (MBL) inhibitor with IC50 of 290 nM and 195 nM for NDM-1 and VIM-2, shows a comparatively weak inhibitor of VIM-1 and IMP-1 (Ki of 14.6 and 4.15 uM, respectively).

AP1867 is a synthetic FKBP12F36V-directed ligand.

AP1903 (Rimiducid, AP-1903) is a potent, specific synthetic ligand of FKBP Phe36Val mutant (F36V-FKBP) with binding IC50 of 1.8 nM.

AP24534 is a novel, potent multi-target inhibitor of Abl, PDGFRα, VEGFR2, FGFR1 and Src with IC50 of 0.37 nM, 1.1 nM, 1.5 nM, 2.2 nM and 5.4 nM, respectively.

ALK-IN-1 (Brigatinib analog) is a potent and selective active inhibitor of anaplastic lymphoma kinase(ALK), Patent US20140066406 A1.