[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][Ring1][Ring1][C@@H1][Branch2][Ring2][C][C][=N][C][=C][Branch2][Ring1][#Branch2][C][=C][C][=Branch2][Ring1][Ring1][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][Ring1][O][C][=C][N][=C][C][=C][Ring1][=Branch1][Cl][F][N][C][=N][C][=Branch1][O][=N][C][=Branch1][=Branch1][=C][Ring1][=Branch1][C][#N][N][N]"}, {"from": "gpt", "value": "The molecule is an orally bioavailable, small molecule inhibitor of the delta isoform of phosphoinositide-3 kinase (PI3Kdelta) with potential immunomodulating and antineoplastic activities. Upon oral administration, PI3Kdelta inhibitor GS-9901 selectively binds to the delta isoform of PI3K and inhibits its activity. This inhibits the activation of the PI3Kdelta-mediated signaling pathway and prevents proliferation of PI3Kdelta-overexpressing tumor cells. Unlike other isoforms of PI3K, PI3Kdelta is expressed primarily in certain tumor cell types and plays a key role in tumor cell proliferation, motility and survival. The targeted inhibition of PI3Kdelta is designed to preserve PI3K signaling in normal, non-neoplastic cells and thus reduces toxicity to normal, healthy cells."}]