The Article related to nonsense mutation genetic disorder prevention treatment oxaazaanthracenedione preparation, dihydropyridochromenedione oxaazaanthracenedione preparation readthrough inducer premature termination codon, mucopolysaccharidosis muscular dystrophy prevention treatment, duchenne muscular dystrophy cystic fibrosis prevention treatment and other aspects.Synthetic Route of 1160653-94-0
On November 28, 2019, Takeda, Shigemitsu; Shirahase, Hiroaki; Takashima, Shunsuke; Kitao, Tatsuya published a patent.Synthetic Route of 1160653-94-0 The title of the patent was Preparation of 2H-10-oxa-2-azaanthracene-1,9-dione derivatives as readthrough inducers for premature termination codons and pharmaceutical use thereof. And the patent contained the following:
The present invention pertains to the 2H-10-oxa-2-azaanthracene-1,9-dione compounds (1,2-dihydro-10H-pyrido[4,3-b]chromene-1,10-dione derivatives) represented by general formula I [R1 = (un)substituted ring group; R2 = each (un)substituted C1-6 alkyl, C3-6 cycloalkyl, or C3-8 cycloalkenyl; R3, R4, R5 = each independently H, halo, cyano, hydroxy, or each (un)substituted acyl, NH2, C1-6 alkyl, C1-6 alkoxy, heterocyclyl, or heterocyclyloxy; or R3 and R4 or R4 and R5 are bonded to each other to form each (un)substituted C5-7 cycloalkene or 5- to 7-membered monocyclic nonaromatic heterocyclic ring together with the carbon atoms to which they are bonded]. A pharmaceutical composition containing the compound I or its pharmaceutically acceptable salt as an active ingredient, a readthrough inducer for premature termination codons containing the compound I or its pharmaceutically acceptable salt, and a prophylactic or therapeutic agent containing the compound I or its pharmaceutically acceptable salt as an active ingredient for nonsense mutation genetic disorder are also provided. The nonsense mutation genetic disorder is mucopolysaccharidosis, muscular dystrophy, Duchenne muscular dystrophy, cystic fibrosis, ceroid lipofuscinosis or Niemann-Pick disease. The compounds I or pharmaceutically acceptable salt thereof have readthrough activity for the nonsense mutation that results in premature termination codons, enable the production of full-length proteins, and are useful for the prevention or treatment of the nonsense mutation genetic disorder described above. Thus, 6-cyclobutyl-2-oxo-1-phenyl-1,2-dihydropyridin-4-yl 2-fluorobenzoate was esterified by 2-fluorobenzoyl chloride in the presence of Et3N in toluene at room temperature fro 40 min to quant. give 6-cyclobutyl-2-oxo-1-phenyl-1,2-dihydropyridin-4-yl 2-fluorobenzoate which underwent cyclization by treatment with KCN, Et3N, and 18-crown-6 in toluene at 50° for 4 h to give 43% 3-cyclobutyl-2-phenyl-2H-10-oxa-2-azaanthracene-1,9-dione (II). II at 3 μM increased the activity of α-L-iduronidase 1.5 to -10-times in Hurler syndrome patient-derived fibroblast possessing α-L-iduronidase W402X-mutation. The experimental process involved the reaction of 3-Bromo-2-fluoro-6-methoxybenzaldehyde(cas: 1160653-94-0).Synthetic Route of 1160653-94-0
The Article related to nonsense mutation genetic disorder prevention treatment oxaazaanthracenedione preparation, dihydropyridochromenedione oxaazaanthracenedione preparation readthrough inducer premature termination codon, mucopolysaccharidosis muscular dystrophy prevention treatment, duchenne muscular dystrophy cystic fibrosis prevention treatment and other aspects.Synthetic Route of 1160653-94-0
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary