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144690-33-5

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  • 1H-Imidazole-5-carboxylic acid, 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[[2'-[1-(triphenylmethyl)-1H-tetraz ol-5-yl][1,1'-biphenyl]-4-yl]methyl]-, ethyl ester 144690-33-5

    Cas No: 144690-33-5

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144690-33-5 Usage

Uses

Tritylolmesartan Ethyl Ester is an impurity of olmesartan medoxomil (O550000), an angiotensin II receptor antagonist and anti-hypertensive drug.

Check Digit Verification of cas no

The CAS Registry Mumber 144690-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,6,9 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 144690-33:
(8*1)+(7*4)+(6*4)+(5*6)+(4*9)+(3*0)+(2*3)+(1*3)=135
135 % 10 = 5
So 144690-33-5 is a valid CAS Registry Number.

144690-33-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name Ethyl 4-(2-hydroxy-2-propanyl)-2-propyl-1-{[2'-(1-trityl-1H-tetra zol-5-yl)-4-biphenylyl]methyl}-1H-imidazole-5-carboxylate

1.2 Other means of identification

Product number -
Other names ethyl 5-(1-hydroxy-1-methylethyl)-2-propyl-3-[2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-ylmethyl]-3H-imidazole-4-carboxylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:144690-33-5 SDS

144690-33-5Downstream Products

144690-33-5Relevant articles and documents

Preparation and purification method of olmesartan medoxomil key intermediate

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Paragraph 0013-0024, (2020/07/02)

The invention relates to a preparation and purification method of a key intermediate 4-(1-hydroxy-1-methylethyl)-2-propyl-1-{[2' -(triphenylmethyl-1H-tetrazole-5-yl) (1, 1'-biphenyl)-4-yl] methyl}-1H-imidazole-5-ethyl formate (I) for preparing a chemical drug olmesartan medoxomil for treating hypertension. The invention provides a preparation and purification method for generating a compound (I) by reacting 4-(1-hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylic acid ethyl ester (II) with N-(triphenylmethyl)-5-(4'-bromomethylbiphenyl-2-yl) tetrazole (III) in the presence of an organic solvent and an acid-binding agent. According to the preparation and purification method of the compound (I), the impurity content is effectively reduced, and the quality of a subsequent target productis improved. The method is stable in process, high in yield, good in quality, simple to operate, less in three wastes, low in production cost and suitable for industrial production, and the recoveredsolvent can be continuously used.

A olmesartan medoxomil and its preparation method (by machine translation)

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Paragraph 0028; 0032; 0033, (2017/11/16)

The invention discloses a olmesartan medoxomil and its preparation method, the present invention discloses a olmesartan medoxomil, its chemical structure is: The present invention novel method for preparation method, comprises the following steps: (1) preparing AMST - 3 C45 H44 N6 O3 ; (2) preparing C43 H39 N6 NaO3 AMST - 4; (3) preparing C48 H44 N6 O6 AMST - 6; (4) preparing olmesartan sha tanzhi thick; (5) to make the C29 H30 N6 O6 Olmesartan medoxomil. The invention separation effect is good, relatively low viscosity system, split-phase required time is short, the time is saved but also reduces energy consumption. Filtering and separating the high recovery rate, the product quality is high, the running cost is low; process without the need to add chemical, solvent solvent, not into the secondary pollution material; equipment and automatic operation, good stability, easy to realize industrial demand. (by machine translation)

A process for the preparation of olmesartan

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, (2017/04/19)

The invention discloses a preparation method of Olmesartan Medoxomil. The method is used for synthesizing an important intermediate 4-[2-(2-triphenylmethyl tetrazole-5-yl) phenyl] benzyl bromide (a compound III) so as to prepare the compound Olmesartan Medoxomil. The method is high in yield, easy to separate and purify, simple to operate and suitable for industrial production.

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