4-(acetylamino)-5,6-dihydro-(S)-6-methyl-4H-thieno<2,3-b>thiopyran-2-sulfonamide 7,7-dioxide

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: 4-(acetylamino)-5,6-dihydro-(S)-6-methyl-4H-thieno<2,3-b>thiopyran-2-sulfonamide 7,7-dioxide
• 英文别名: N-((6S)-6-Methyl-7,7-dioxido-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl)acetamide；N-[(6S)-6-methyl-7,7-dioxo-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl]acetamide
• 化学式: C₁₀H₁₄N₂O₅S₃
• 分子量: 338.43
• InChiKey: MQRCTNZVQVRCRD-NTFOPCPOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  168
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  4-(acetylamino)-5,6-dihydro-(S)-6-methyl-4H-thieno<2,3-b>thiopyran-2-sulfonamide 7,7-dioxide 在 dimethyl sulfide borane 、 硫酸 作用下， 生成 多佐胺-2-6
  参考文献：
  名称：

  An enantioselective synthesis of the topically-active carbonic anhydrase inhibitor MK-0507: 5,6-dihydro-(S)-4-(ethylamino)-(S)-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride

  摘要：

  The key feature in the synthesis of topically-active carbonic anhydrase inhibitor MK-0507 (13b) is a Ritter reaction that exhibits an unexpected tendency to proceed with retention of chirality. This phenomenon was further studied on model compounds free from potential diastereomeric effects. A mechanism involving transannular stabilization of the sp2-hybridized center by sulfone oxygen is proposed with the net result of double inversion. A second key feature in the preferred sequence to MK-0507 involves the classic problem of how to maximize substitution over elimination. This problem manifests itself in the stereospecific alkylation of 2-mercaptothiophene with derivatized methyl (R)-3-hydroxybutyrate and is compounded by a subsequent Michael reaction leading to a loss of product chirality. Results are presented that eliminate this problem.

  DOI：

  10.1021/jo00059a013
• 作为产物：
  描述：

  多佐胺-2-2 在 吡啶 、 氯磺酸 、 ammonium hydroxide 、 sodium tungstate 、 lithium aluminium tetrahydride 、 硫酸 、 双氧水 作用下， 以 四氢呋喃 、 水 、 乙酸乙酯 、 甲苯 为溶剂， 反应 63.5h， 生成 4-(acetylamino)-5,6-dihydro-(S)-6-methyl-4H-thieno<2,3-b>thiopyran-2-sulfonamide 7,7-dioxide
  参考文献：
  名称：

  An enantioselective synthesis of the topically-active carbonic anhydrase inhibitor MK-0507: 5,6-dihydro-(S)-4-(ethylamino)-(S)-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride

  摘要：

  The key feature in the synthesis of topically-active carbonic anhydrase inhibitor MK-0507 (13b) is a Ritter reaction that exhibits an unexpected tendency to proceed with retention of chirality. This phenomenon was further studied on model compounds free from potential diastereomeric effects. A mechanism involving transannular stabilization of the sp2-hybridized center by sulfone oxygen is proposed with the net result of double inversion. A second key feature in the preferred sequence to MK-0507 involves the classic problem of how to maximize substitution over elimination. This problem manifests itself in the stereospecific alkylation of 2-mercaptothiophene with derivatized methyl (R)-3-hydroxybutyrate and is compounded by a subsequent Michael reaction leading to a loss of product chirality. Results are presented that eliminate this problem.

  DOI：

  10.1021/jo00059a013

文献信息

• [EN] PROCESS FOR PREPARING ENANTIOMERICALLY ENRICHED OXAMIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'OXAMIDES ENRICHIS EN ÉNANTIOMÈRES
  申请人：ZACH SYSTEM SPA

  公开号：WO2014005943A1

  公开（公告）日：2014-01-09

  The present invention relates to a chiral oxamide of formula (I) useful as an intermediate in the preparation of dorzolamide, and to the preparation thereof. The invention also relates to the preparation of dorzolamide, to the hydrochloride salt thereof, and to the active ingredient contained in a drug useful in the treatment of glaucoma, by means of the intermediate of formula (I).

  本发明涉及一种手性酰胺，其化学式为(I)，可用作多索胺制备中间体，并涉及其制备方法。该发明还涉及多索胺的制备、其盐酸盐，以及通过化学式(I)的中间体制备用于治疗青光眼的药物中所含的活性成分。
• Process for Preparing Enantiomerically Enriched Oxamides
  申请人：Zach System S.P.A.

  公开号：US20150191485A1

  公开（公告）日：2015-07-09

  The present invention relates to a chiral oxamide of formula (I) useful as an intermediate in the preparation of dorzolamide, and to the preparation thereof. The invention also relates to the preparation of dorzolamide, to the hydrochloride salt thereof, and to the active ingredient contained in a drug useful in the treatment of glaucoma, by means of the intermediate of formula (I).

  本发明涉及一种手性酰胺，其化学式为（I），可用作多索胺制备中间体，并涉及其制备方法。该发明还涉及多索胺的制备，其盐酸盐，以及通过化学式（I）的中间体制备用于治疗青光眼的药物中所含的活性成分。
• J. Org. Chem. 1993,58, 1672-1679
  作者：

  DOI：——

  日期：——
• US9481686B2
  申请人：——

  公开号：US9481686B2

  公开（公告）日：2016-11-01
• An enantioselective synthesis of the topically-active carbonic anhydrase inhibitor MK-0507: 5,6-dihydro-(S)-4-(ethylamino)-(S)-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride
  作者：Thomas J. Blacklock、Paul Sohar、John W. Butcher、T. Lamanec、E. J. J. Grabowski

  DOI：10.1021/jo00059a013

  日期：1993.3

  The key feature in the synthesis of topically-active carbonic anhydrase inhibitor MK-0507 (13b) is a Ritter reaction that exhibits an unexpected tendency to proceed with retention of chirality. This phenomenon was further studied on model compounds free from potential diastereomeric effects. A mechanism involving transannular stabilization of the sp2-hybridized center by sulfone oxygen is proposed with the net result of double inversion. A second key feature in the preferred sequence to MK-0507 involves the classic problem of how to maximize substitution over elimination. This problem manifests itself in the stereospecific alkylation of 2-mercaptothiophene with derivatized methyl (R)-3-hydroxybutyrate and is compounded by a subsequent Michael reaction leading to a loss of product chirality. Results are presented that eliminate this problem.