Application of 3405-77-4, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3405-77-4, Name is 5-Methylisoxazole-3-carboxylic acid, molecular formula is C5H5NO3. In a article，once mentioned of 3405-77-4
4-Hydroxy-N-<5-(hydroxymethyl)-3-isoxazolyl>-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide (2), the major oxidative human metabolite of isoxicam (1), and <(5-methyl-3-isoxazolyl)amino>oxoacetic acid (3), the major rat metabolite of isoxicam (1), were synthesized. 2 was synthesized by condensation of the known benzothiazine ester 8 with the isoxazolamine 9b. 9b was synthesized via a nine-step sequence starting with 5-methyl-3-isoxazolecarboxylic acid (14).NBS bromination of 14 gave 5-(bromomethyl)-3-isoxazolecarboxylic acid, which was coverted to the carbamate ester via a Curtius rearrangement of the acid azide.Displacement of bromine with silver acetate gave the acetoxy compound 21.Hydrolysis of 21 gave the unstable 3-isoxazolamine derivative 9a, which was converted to the OSiMe3 derivative 9b.The compound 3 was synthesized by reaction of ethyl oxalyl chloride with 5-methyl-3-isoxazolamine followed by base hydrolysis.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 3405-77-4
Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem