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【结 构 式】

【分子编号】21040

【品名】4-hydroxy-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-6-sulfonamide

【CA登记号】

【 分 子 式 】C7H9NO5S3

【 分 子 量 】283.3502

【元素组成】C 29.67% H 3.2% N 4.94% O 28.23% S 33.95%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(I)

The reaction of (I) with acetonitrile in sulfuric acid provides the amide (II), which after hydrolysis in 12N HCl/methanol yields the 4-amino derivative (III). Acylation of (III) with isobutyryl chloride followed by reduction with borane-methylsulfide complex gives the racemate (V), MK-927 (2). The resolution of MK-927 is accomplished through the di-p-toluoyl-D-tartaric acid salt.

1 Baldwin, J.J.; Christy, M.E.; Ponticello, G.S.; Anyiglaucoma thieno-thiopyran and thieno-thiepin sulfonamide derivatives, compositions, and method of use thereof.. US 4677115 .
2 Baldwin, J.J.; Ponticello, G.S.; Sugrue, M.F.; MK-417. Drugs Fut 1989, 14, 7, 636.
3 Ponticello, G.S.; Freedman, M.B.; Habecker, C.N.; Lyle, P.A.; Schwam, H.; Varga, S.L.; Christy, M.E.; Randall, W.C.; Baldwin, J.J.; Thienothiopyran-2-sulfonamides: A novel class of water-soluble carbonic anhydrase inhibitors. J Med Chem 1987, 30, 591-7.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
14932 isobutyryl chloride; 2-methylpropanoyl chloride 79-30-1 C4H7ClO 详情 详情
(I) 21040 4-hydroxy-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-6-sulfonamide C7H9NO5S3 详情 详情
(II) 21041 N-[6-(aminosulfonyl)-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-4-yl]acetamide C9H12N2O5S3 详情 详情
(III) 21042 4-amino-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-6-sulfonamide C7H10N2O4S3 详情 详情
(IV) 21043 N-[6-(aminosulfonyl)-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-4-yl]-2-methylpropanamide C11H16N2O5S3 详情 详情
(V) 21044 4-(isobutylamino)-1,1-dioxo-1,2,3,4-tetrahydro-2H-thieno[2,3-b]thiopyran-6-sulfonamide C11H18N2O4S3 详情 详情
Extended Information