84541-38-8

Basic information

• Product Name: (4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)(6-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHEN-3-YL)METHANONE
• Synonyms: (4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)(6-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHEN-3-YL)METHANONE;(6-Methoxy-2-(4-Methoxyphenyl)benzo[b]thiophen-3-yl)(4-(2-(piperidin-1-yl)ethoxy)phenyl)Methanone;Raloxifene IMpurity: IMpurity C;[6-methoxy-2-(4-methoxyphenyl)-1-benzothiophen-3-yl]-[4-(2-piperidin-1-ylethoxy)phenyl]methanone
• CAS NO: 84541-38-8
• Molecular Formula: C₃₀H₃₁NO₄S
• Molecular Weight: 501.64
• Product Categories: Intermediates & Fine Chemicals;Pharmaceuticals
• Mol File: 84541-38-8.mol
• Article Data: 18

Chemical Properties

• Melting Point: 75-85°C
• Appearance: /
• Storage Temp.: -20°C Freezer, Under Inert Atmosphere
• CAS DataBase Reference: (4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)(6-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHEN-3-YL)METHANONE(CAS DataBase Reference)
• NIST Chemistry Reference: (4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)(6-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHEN-3-YL)METHANONE(84541-38-8)
• EPA Substance Registry System: (4-(2-(PIPERIDIN-1-YL)ETHOXY)PHENYL)(6-METHOXY-2-(4-METHOXYPHENYL)BENZO[B]THIOPHEN-3-YL)METHANONE(84541-38-8)

Safety Data

• Hazardous Substances Data: 84541-38-8(Hazardous Substances Data)

Usage

Chemical Properties

Yellow Solid

Uses

An intermediate in the synthesis of Raloxifene, a nonsteroidal estrogen receptor mixed agonist/antagonist.

Upstream product

• 3040-44-6 1-piperidinoethanol 
• 206434-78-8 4-Bromophenyl-[6-methoxy-2-(4-methoxy-phenyl)benzo[b]thien-3-yl]methanone 
• 206434-77-7 6-methoxy-2-(4-methoxyphenyl)-3-(4-fluorobenzoyl)benzo[b]thiophene 
• 206434-76-6 6-methoxy-2-(4-methoxyphenyl)-3-(4-nitrobenzoyl)-benzo[b]thiophene 
• 215673-37-3 6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene-3-carboxylic acid methyl ester 
• 188824-65-9 4-[2-(1-piperidinyl)ethoxy]phenylmagnesium bromide 
• 67-56-1 methanol 
• 186787-88-2 methyl 6-(6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophene-3-carboxamido)hexanoate 
• 766-85-8 3-methoxy-1-iodobenzene 
• 4897-68-1 2-iodo-4-methoxybromobenzene 
• 540-38-5 p-Iodophenol 
• 133430-99-6 4-(tert-butyldimethylsilyloxy)iodobenzene 
• 200625-51-0 [{4-(1,1-dimethylethyl)dimethylsiloxyphenyl}ethynyl]trimethylsilane 
• 100-07-2 4-methoxy-benzoyl chloride 

Downstream Products

• 195454-32-1 [2-(4-Methoxyphenyl)-6-methoxybenzo[b]thien-3-yl][4-[2-(1-piperidinyl)ethoxy]phenyl]methanone N-oxide 
• 84541-36-6 [2-(4-methoxyphenyl)-6-methoxybenzo[b]thien-3-yl][4-[2-(1-piperidinyl)ethoxy]phenyl]methanone hydrochloride 
• 1293362-54-5 1-(2-{4-[6-Methoxy-2-(4-methoxy-phenyl)-benzo[b]thiophene-3-carbonyl]-phenoxy}-ethyl)-piperidinium bromide 
• 1293408-87-3 1-(2-(4-[6-Hydroxy-2-(4-hydroxy-phenyl)-benzo[b]thiophene-3-carbonyl]-phenoxy)-ethyl)-piperidinium bromide 
• 82640-04-8 raloxifene hydrochloride 
• 84449-90-1 Raloxifen 

Relevant articles and documents

Preparation method of raloxifene hydrochloride and intermediate thereof

The preparation method comprises the following steps: preparing a raloxifene hydrochloride precursor (intermediate 2) from 1-{4-[2-(piperidine-1-yl)ethyoxyl]phenyl}-2-(2-sulfydryl-4-methoxyphenyl)ethanone (intermediate 1) and 4-methoxybenzoyl halide, performing demethylation protection, and preparing raloxifene hydrochloride from the demethylated raloxifene hydrochloride precursor and hydrochloricacid. Herein, the intermediate 1 is generated by removing benzyl protection from an intermediate 3 (1-{4-[2-(piperidine-1-yl)ethoxy]phenyl}-2-(2-benzylthio-4-methoxyphenyl)ethanone) in trifluoroacetic acid through a reaction; (3-methoxyphenyl) benzyl sulfide is oxidized to generate a sulfoxide compound, and then the sulfoxide compound reacts with 1-[2-(4-ethynylphenoxy)ethyl]piperidine to generate an intermediate 3. The method has the advantages of mild reaction conditions, few side reactions, high yield, cheap reagent raw materials, easy recovery and easy preparation, and is suitable for industrial large-scale production.

A pizotifen derivative and its preparation method (by machine translation)

The invention discloses a pizotifen derivatives, its molecular formula is The preparation of the pizotifen derivatives raw materials used is simple, its reaction condition is easy to reach, and has a higher yield, in the reaction process also will not produce harmful substances, is a raw material and the reaction conditions are simple pizotifen derivatives. (by machine translation)

Efficient synthesis of 3-benzoyl Benzo[b]thiophenes and raloxifene via Mercury(II)-Catalyzed cyclization of 2-alkynylphenyl alkyl sulfoxides

The unique selective estrogen receptor modulator, Raloxifene (1), and antitubulin agent 2 were synthesized through the key intermediate, 4-methoxybenzyl 2-bromo-4-methoxyphenyl sulfoxide (6), respectively. It was found that compared with the o-sulfanyl aryl bromides, the sulfinyl group at ortho position accelerated the Sonogashira coupling reaction of aryl bromides. Thus, compound 6 was coupled with 3,4,5-trimethoxyphenyl acetylene, followed by mercury-catalyzed cyclization reaction afford compound 2 in 79% overall yield. Raloxifene (1) was prepared from compound 6 in four steps and 33% overall yield via coupling reaction with 1-trimethylsily-2-(4-tert-butyldimethylsiloxy)phenylethyne, mercury-catalyzed cyclization reaction, alkylation and demethylation.