Chemistry:ICI-164384

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Short description: Chemical compound
ICI-164384
ICI-164384.svg
Clinical data
Other namesN-n-Butyl-N-methyl-11-(3,17β-dihydroxyestra-1,3,5(10)-trien-7α-yl)undecanamide
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
Chemical and physical data
FormulaC34H55NO3
Molar mass525.818 g·mol−1
3D model (JSmol)

ICI-164384, also known as N-n-butyl-N-methyl-11-(3,17β-dihydroxyestra-1,3,5(10)-trien-7α-yl)undecanamide, is a steroidal antiestrogen and a synthetic derivative of estradiol which is closely related to fulvestrant and was never marketed.[1][2] It is a silent antagonist of the estrogen receptor (ER) with no intrinsic estrogenic activity and hence is a pure antiestrogen, unlike selective estrogen receptor modulators (SERMs) like tamoxifen.[1][2] The drug was under development by AstraZeneca for the treatment of breast cancer but was discontinued in favor of fulvestrant,[3] which is very similar to ICI-164384 but is more potent in comparison.[4]

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