:YM-976

{{notability|date=March 2015}}

{{Chembox

| ImageFile = YM 976.svg

| ImageSize = 175

| ImageAlt =

| PIN = 4-(3-Chlorophenyl)-1,7-diethylpyrido[2,3-d]pyrimidin-2(1H)-one

| OtherNames =

| Section1 = {{Chembox Identifiers

| IUPHAR_ligand = 5292

| CASNo = 191219-80-4

| CASNo_Ref = {{cascite|correct|CAS}}

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 7GQT2M8W42

| PubChem = 6604918

| ChemSpiderID = 5037176

| InChI = 1S/C17H16ClN3O/c1-3-13-8-9-14-15(11-6-5-7-12(18)10-11)20-17(22)21(4-2)16(14)19-13/h5-10H,3-4H2,1-2H3

| InChIKey = MNHXYNNKDDXKNP-UHFFFAOYSA-N

| SMILES = CCC1=NC2=C(C=C1)C(=NC(=O)N2CC)C3=CC(=CC=C3)Cl

}}

| Section2 = {{Chembox Properties

| C=17 | H=16 | Cl=1 | N=3 | O=1

| Appearance =

| Density =

| MeltingPt =

| BoilingPt =

| Solubility =

}}

| Section3 = {{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt =

}}

}}

YM-976 is a phosphodiesterase inhibitor.{{cite journal|pmid=19306867 | doi=10.1016/j.ejphar.2009.03.039 | volume=610 | issue=1–3 | title=Effect of phosphodiesterase antagonists on glucocorticoid mediated growth inhibition in murine skin cell lines | date=May 2009 | journal=Eur. J. Pharmacol. | pages=29–36| last1=Kowalczyk | first1=Piotr | last2=Kinjo | first2=Tatsuya | last3=Kowalczyk | first3=Magdalena | last4=Walaszek | first4=Zbigniew | last5=Hanausek | first5=Margaret | last6=Slaga | first6=Thomas J. }}