Lasofoxifene

Lasofoxifene, sold under the brand name Fablyn, is a nonsteroidal selective estrogen receptor modulator (SERM) which is marketed by Pfizer in Lithuania and Portugal for the prevention and treatment of osteoporosis and for the treatment of vaginal atrophy, and the result of an exclusive research collaboration with Ligand Pharmaceuticals (LGND). It also appears to have had a statistically significant effect of reducing breast cancer in women according to a study published in The Journal of the National Cancer Institute.

Lasofoxifene
Clinical data
Trade namesFablyn
Routes of
administration
By mouth
Drug classSelective estrogen receptor modulator
ATC code
Identifiers
  • (5R,6S)-6-phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaphthalen-2-ol
CAS Number
PubChem CID
IUPHAR/BPS
ChemSpider
UNII
ChEBI
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC28H31NO2
Molar mass413.55 g/mol
563.64 g/mol (tartrate) g·mol−1
3D model (JSmol)
SMILES
  • O(c1ccc(cc1)[C@@H]4c2ccc(O)cc2CC[C@@H]4c3ccccc3)CCN5CCCC5
  • InChI=1S/C28H31NO2/c30-24-11-15-27-23(20-24)10-14-26(21-6-2-1-3-7-21)28(27)22-8-12-25(13-9-22)31-19-18-29-16-4-5-17-29/h1-3,6-9,11-13,15,20,26,28,30H,4-5,10,14,16-19H2/t26-,28+/m1/s1 Y
  • Key:GXESHMAMLJKROZ-IAPPQJPRSA-N Y
 NY (what is this?)  (verify)
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