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155432-64-7

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155432-64-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155432-64-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,4,3 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155432-64:
(8*1)+(7*5)+(6*5)+(5*4)+(4*3)+(3*2)+(2*6)+(1*4)=127
127 % 10 = 7
So 155432-64-7 is a valid CAS Registry Number.
InChI:InChI=1/C23H20F6N6O3/c1-14(22(37,9-33-12-30-11-31-33)18-7-2-15(24)8-19(18)25)35-21(36)34(13-32-35)16-3-5-17(6-4-16)38-10-23(28,29)20(26)27/h2-8,11-14,20,37H,9-10H2,1H3/t14-,22-/m1/s1

155432-64-7Upstream product

155432-64-7Downstream Products

155432-64-7Relevant articles and documents

Optically active antifungal azoles. IX. An alternative synthetic route for 2-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol- 1-yl)propyl]-4-[4-(2,2,3,3-tetrafluoropropoxy)phenyl]-3(2H,4H)1,2,4- triazolone and its analogs

Kitazaki, Tomoyuki,Tasaka, Akihiro,Hosono, Hiroshi,Matsushita, Yoshihiro,Itoh, Katsumi

, p. 360 - 368 (2007/10/03)

A new route for the synthesis of the optically active antifungal azole TAK-187, 2-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4- triazol-1-yl)propyl]-4-[4-(2,2,3,3-tetrafluoroptopoxy)phenyl]3(2H,4H)-1,2,4- triazolone, was established. The key synthetic intermediate, 2-[(1R)-2-(2,4- difluorophenyl)-2-oxo-1-methylethyl]-4-[4-(2,2,3,3- tetrafluoropropoxy)phenyl]-3(2H,4H)-1,2,4-triazolone (8), was prepared starting from the esters (11a, b) of (S)-lactic acid in a stereocontrolled manner. This optically active propiophenone derivative 8 was converted to the one carbon-elongated (1R,2S)-diol 7, which was then reacted with 1H-1,2,4- triazole to yield TAK-187. This newly developed route was applied to the synthesis of the analogs (25a, b - 28a, b) containing an imidazolone or imidazolidinone nucleus.

Optically active antifungal azoles. VII. Synthesis and antifungal activity of stereoisomers of 2-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1- methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-4-[4-(2,2,3,3- tetrafluoropropoxy)phenyl]-3(2H,4H)-1,2,4-triazolone (TAK-187)

Tasaka, Akihiro,Kitazaki, Tomoyuki,Tsuchimori, Noboru,Matsushita, Yoshihiro,Hayashi, Ryogo,Okonogi, Kenji,Itoh, Katsumi

, p. 321 - 326 (2007/10/03)

2-[(1R,2R)-2-(2,4-Difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4- triazol-1-yl)propyl]-4-[4-(2,2,3,3-tetrafluopropoxy)phenyl]-3(2H,4H)-1,2,4- triazolone [(1R,2R)-1: TAK-187] is a new antifungal agent selected as a candidate for clinical trials. The three stereoisomers [(1S,2S)-, (1R,2S)- and (1S,2R)-1] of this compound were prepared to clarify the relationship between the stereochemistry and the biological activities. In vitro and in vivo assays of antifungal activity revealed TAK-187 [(1R,2R)-1] is the most potent among the four stereoisomers. Furthermore, TAK-187 was found to exert a strong and selective inhibitory effect on the sterol synthesis in Candida albicans as compared with that in rat liver.

Optically active azole derivatives, their production and use

-

, (2008/06/13)

A process for preparing a compound of the formula (IV) or a salt thereof, , wherein R1 is an optionally substituted aliphatic or aromatic hydrocarbon residue or an optionally substituted aromatic heterocyclic group, one of Y and Z is a nitrogen atom and t

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