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135270-13-2

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135270-13-2 Usage

Uses

(2R,3R)-2-(2,4-Difluorophenyl)-3-methyl-2-[(1H-1,2,4-triazol-1-yl)methyl]oxirane is a useful synthetic intermediate in the synthesis of (2R,3S)-Efinaconazole (E435080); the 2R,3S-enantiomer of Efinaconazole (E435070) which is a topical antifungal for onychomycosis.

Check Digit Verification of cas no

The CAS Registry Mumber 135270-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,7 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 135270-13:
(8*1)+(7*3)+(6*5)+(5*2)+(4*7)+(3*0)+(2*1)+(1*3)=102
102 % 10 = 2
So 135270-13-2 is a valid CAS Registry Number.

135270-13-2SDS

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 (2R,3S)-2-(2,4-difluorophenyl)-3-methyl-2-[(1H-1,2,4-triazole-1-yl)methyl]oxirane

1.2 Other means of identification

Product number -
Other names .(2R,3S)-2-(2,4-difluorophenyl)-3-methyl-2-(1H-1,2,4-triazole-1-yl)methyloxirane

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:135270-13-2 SDS

135270-13-2Relevant articles and documents

NOVEL METHOD FOR PREPARATION OF EPOXYTRIAZOLE DERIVATIVES

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Paragraph 0109; 0115-0116; 0126-0127, (2021/04/13)

The present invention relates to novel processes for preparing epoxytriazole derivatives. The method of claim 1, further comprising the step of adding a base to the intermediate compound. The present invention relates to an epoxytriazole derivative and a manufacturing method thereof. Chemical Formula 1. Here, Ar denotes C. 6 -C10 Aryl group or C aryl group2 -C9 The aryl group 1 -4 is substituted or unsubstituted, and when 2 or more halogen is substituted, the heteroaryl group may be the same as or different from each other, and the heteroaryl group is represented by 1 -4 fluorine, chlorine, or C. 1 -C3 Substituted or unsubstituted alkyl groups, and fluorine, chlorine, or C. 1 -C3 When more than 2 substituents are substituted, each of these substituents may be the same or different and may be different from each other. The A is C. 1 -C3 Represents an alkyl group, and the R represents an alkyl group. 1 And R2 Is a methyl group or an ethyl group.

Triazole alcohol derivative, and preparation method and application thereof

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, (2020/05/01)

The invention relates to a triazole alcohol derivative, and a preparation method and an application thereof. The chemical structure of the triazole alcohol derivative is represented by formula I, A inthe formula I represents a benzene ring or a substituted benzene ring, and the substituent group of the substituted benzene ring can be located at each position of the benzene ring, is monosubstituted or polysubstituted, and is selected from: a) halogen which is F, Cl, Br or I; b) an electron-withdrawing group, wherein the electron withdrawing group is a cyano group, a nitro group or a trifluoromethyl group; c) a C1-4 low alkyl group or a halogen-substituted low alkyl group; and d) a C1-4 low alkoxy group or a halogen-substituted low alkoxy group. The compound has the advantages of high antifungal activity, low toxicity, wide antibacterial spectrum and the like, and can be used for preparing antifungal medicines.

METHOD FOR PREPARATION OF EFINACONAZOLE IN IONIC LIQUID MEDIUM

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Paragraph 0090-0093, (2021/01/29)

The present invention relates to a novel method for preparation of efinaconazole in an ionic liquid medium, the method comprising: reacting 1-[[(2R,3S)-2-(2,4-difluorophenyl)-3-methyloxiranyl]methyl]-1H-1,2,4-triazole, and 4-methylenepiperidine or an organic chemically acceptable salt thereof, wherein the 4-methylenepiperidine or the organic chemically acceptable salt thereof is anionized on a base; and performing a coupling reaction with the 1-[[(2R,3S)-2-(2,4-difluorophenyl)-3-methyloxiranyl]methyl]-1H-1,2,4-triazole in the presence of an ionic liquid compound. The present invention uses an ionic liquid instead of an organic solvent when preparing efinaconazole, thereby reducing related substances compared to the conventional method, shortens the reaction time, thereby making it possible to easily obtain the final compound, efinaconazole, with high purity and high yield, and may be very suitably used for mass production.

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