![]() Suxibuzone molecule | |
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AHFS/Drugs.com | International Drug Names |
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ECHA InfoCard | 100.044.056 |
Chemical and physical data | |
Formula | C24H26N2O6 |
Molar mass | 438.480 g·mol−1 |
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Suxibuzone is an analgesic used for joint and muscular pain. It is a prodrug of the non-steroidal anti-inflammatory drug (NSAID) phenylbutazone, [1] and is commonly used in horses. [2]
Suxibuzone is synthesized by the following method: [3] Patent: [4] (Precursor: [5] )
Phenylbutazone [50-33-9] (1) is hydroxymethylated with formaldehyde giving ~86% 4-butyl-4-(hydroxymethyl)-1,2-diphenylpyrazolidine-3,5-dione [23111-33-3] (2). This is then esterified with succinic anhydride. [108-30-5] (3) to give (4).