Exisulind

Exisulind
Names
	Preferred IUPAC name [(1Z)-5-Fluoro-1-{[4-(methanesulfanyl)phenyl]methylidene}-2-methyl-1H-inden-3-yl]acetic acid
	Other names Sulindac sulfone, Aptosyn, FGN-1, Prevatac
Identifiers
CAS Number	59973-80-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:64212;
ChEMBL	ChEMBL488025;
ChemSpider	4582441;
PubChem CID	5472495;
UNII	K619IIG2R9 ;
CompTox Dashboard (EPA)	DTXSID6040246 ;
	InChI InChI=1S/C20H17FO4S/c1-12-17(9-13-3-6-15(7-4-13)26(2,24)25)16-8-5-14(21)10-19(16)18(12)11-20(22)23/h3-10H,11H2,1-2H3,(H,22,23)/b17-9- Key: MVGSNCBCUWPVDA-MFOYZWKCSA-N; InChI=1/C20H17FO4S/c1-12-17(9-13-3-6-15(7-4-13)26(2,24)25)16-8-5-14(21)10-19(16)18(12)11-20(22)23/h3-10H,11H2,1-2H3,(H,22,23)/b17-9- Key: MVGSNCBCUWPVDA-MFOYZWKCBW;
	SMILES CC1=C(CC(O)=O)C2=C(C=CC(F)=C2)\C1=C/C1=CC=C(C=C1)S(C)(=O)=O;
Properties
Chemical formula	C20H17FO4S
Molar mass	372.41 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Exisulind (tentative trade name Aptosyn) is an antineoplastic agent. It acts by inhibiting the enzyme cyclic guanosine monophosphate phosphodiesterase type 5 (EC 3.1.4.17).^[1] It is the sulfone derivative of sulindac, an NSAID. Unlike sulindac, it has known effects on prostaglandin synthesis.^[2] It was developed as the potential treatment of several conditions including familial adenomatous polyposis (FAP), precancerous sporadic colonic polyps, cervical dysplasia and the prevention of tumor recurrence in prostate and breast cancer.^[3] Exisulind inhibits the enzyme cGMP-PDE, overexpressed in precancerous and cancerous colorectal cells, and induces apoptosis in such cells with minimal effects on normal cells. This apoptotic effect is independent of COX-1 or COX-2 inhibition, p53, Bcl-2, or cell cycle arrest. Preclinical evidence suggests that exisulind also inhibits angiogenesis.^[4]

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