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| | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol Basic information |
| Product Name: | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol | | Synonyms: | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol;2-[4-[(1Z)-4-chloro-1,2-diphenyl-1-buten-1-yl]phenoxy]-ethanol;2-(p-((Z)-4-Chloro-1,2-diphenyl-1-butenyl)phenoxy)ethanol;Ccris 9205;Fc-1271a;Ospemifene;Unii-B0p231ilbk;2-[4-[(Z)-4-chloro-1,2-diphenylbut-1-enyl]phenoxy]ethanol | | CAS: | 128607-22-7 | | MF: | C24H23ClO2 | | MW: | 378.89 | | EINECS: | 664-452-6 | | Product Categories: | Inhibitors | | Mol File: | 128607-22-7.mol |  |
| | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol Chemical Properties |
| Boiling point | 544.6±50.0 °C(Predicted) | | density | 1.166±0.06 g/cm3(Predicted) | | storage temp. | Sealed in dry,2-8°C | | solubility | DMSO: soluble20mg/mL, clear | | pka | 14.26±0.10(Predicted) | | form | powder | | color | white to beige | | InChIKey | LUMKNAVTFCDUIE-VHXPQNKSSA-N | | CAS DataBase Reference | 128607-22-7 |
| | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol Usage And Synthesis |
| Description | In February 2013, the US FDA approved ospemifene (also referred to as FC1271a), for the treatment ofmoderate to severe dyspareunia, a symptom of vulvar and vaginal atrophy (VVA), due tomenopause. It is estimated that there are 150 million postmenopausal women worldwide with 40–70% suffering from VVA. Ospemifene is a selective estrogen receptor (ER) modulator (SERM) and the first nonhormonal, nonestrogen for the treatment of moderate to severe dyspareunia in women with menopausal VVA. It binds to ERα (IC50～800 nM) and ERβ (IC50～1600 nM) with tissue-specific estrogenic agonist/antagonist effects. Treatment with ospemifene increases the thickness of the vaginal tissue thereby decreasing fragility of the tissue and reducing potential for pain during sexual intercourse. | | Originator | Tess Diagnostics and
Pharmaceuticals/Hormos
Medical/QuatRx (Finland) | | Uses | Treatment of vaginal atrophy, osteoporosis, and vasomotor symptoms. | | Definition | ChEBI: An organochlorine compound that is a selective estrogen receptor modulator; used for treatment of dyspareunia. | | Brand name | Osphena | | Clinical Use | Ospemifene is a SERM that is currently in Phase II/III clinical trials for the treatment of postmenopausal
osteoporosis and urogenital atrophy. It is a known metabolite of toremifene, a triphenylethylene
derivative used to treat breast cancer.Ospemifene has been shown to have beneficial effects on the bone
without significant estrogen-related side effects. The beneficial effect observed on bone stems from this
agent's ability to increase osteoblast proliferation and, as a result, to enhance bone mineralization as well as
bone formation. Unlike tamoxifen, ospemifene does not induce osteocyte apoptosis. | | Synthesis | The drug can be synthesized succinctly in two steps. First, alkylation
of commercially available 4-hydroxybenzophenone (130)
with ethylene carbonate and catalytic sodium iodide in refluxing
toluene provided benzophenone 131 in 94% yield. This was followed
by a McMurry coupling involving benzophenone 131 with
chloropropiophenone 132 in the presence of zinc powder and titanium
tetrachloride in 2-methyltetrahydrofuran. This reaction gave
rise to a mixture of triphenylethylenes directly as a 5.5:1 ratio of Z
to E isomers which could be separated by crystallization in aqueous
methanol to give a mixture of olefins, 98% of which was comprised
of the desired Z-isomer corresponding to ospemifene (XVII).
The product purity was further improved by recrystallization to
give 99.9% of the Z-isomer in 46% yield from 131. Thus, ospemifene
was synthesized in two steps and 43% overall yield. 
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| | 2-(4-(4-chloro-1,2-diphenyl-but-1-enyl)phenoxy)ethanol Preparation Products And Raw materials |
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