4,4-dimethyl-2-oxo-3,4-dihydro-2H-1-benzothiopyran | 91587-25-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 硫铬烷
• 英文名称: 4,4-dimethyl-2-oxo-3,4-dihydro-2H-1-benzothiopyran
• 英文别名: 2H-1-Benzothiopyran-2-one, 3,4-dihydro-4,4-dimethyl-；4,4-dimethyl-3H-thiochromen-2-one
• CAS: 91587-25-6
• 化学式: C₁₁H₁₂OS
• 分子量: 192.282
• InChiKey: USOPDSHQMBPHOZ-UHFFFAOYSA-N

物化性质

• 沸点：
  279.3±20.0 °C(Predicted)
• 密度：
  1.126±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  42.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,4-dimethyl-2-oxo-3,4-dihydro-2H-1-benzothiopyran 在 lithium aluminium tetrahydride 、 三氯化铝 作用下， 以 四氢呋喃 、 二硫化碳 为溶剂， 反应 6.25h， 生成 6-乙酰基-4,4-二甲基二氢苯并噻喃
  参考文献：
  名称：

  Conformationally restricted retinoids

  摘要：

  A series of conformationally restricted retinoids was synthesized and screened in two assays used to measure the ability of retinoids to control cell differentiation, namely, the reversal of keratinization in tracheal organ culture from vitamin A deficient hamsters and the inhibition of the induction of mouse epidermal ornithine decarboxylase by a tumor promoter. These compounds had bonds corresponding to selected bonds of the E-tetraene chain of retinoic acid (1) held in a planar cisoid conformation by inclusion in an aromatic ring. The meta-substituted analogue 3 of 4-[(E)-2-methyl-4-(2,6,6-trimethylcyclohexenyl)-1,3-butadienyl+ ++]benzoic acid (2) was far less active than 2 in both assays. In contrast, the vinyl homologue of 2 (4) and the 7,8-dihydro and 7,8-methano analogues (5 and 6) had activity comparable to that of 2. Analogues of 4-[(E)-2-(1,1,4,4-tetramethyl-1,2,3,4-tetrahydro-6-naphthyl)propenyl] benzoic acid (7) were also screened. Replacement of the tetrahydronaphthalene ring of 7 by a benzonorbornenyl group (9) significantly reduced activity, as did removal of the vinylic methyl group from 9 (10). Replacement of the propenyl group of 9 by a cyclopropane ring (12) also reduced activity. Replacement of the tetrahydronaphthalene ring of 7 by 4,4-dimethyl-3,4-dihydro-2H-1-benzopyran and -benzothiopyran rings (13 and 14) also decreased activity. Inclusion of the 7,9 double bond system of 1 in an aromatic ring (15 and 16) reduced activity, whereas inclusion of the 5,7 double bond system in an aromatic ring enhanced activity (7 and 19). Inclusion of the 11,13 and 9,11,13 double bond systems in aromatic rings (2 and 18) also reduced activity below that of 1. Retinoic acid, 7, 13, 14, and 19 inhibited papilloma tumor formation in mice. Toxicity testing indicated that 7 was more toxic than 1, 13, 14, and 19, 19 was more toxic than 1, and 13 and 14 were less toxic than 1.

  DOI：

  10.1021/jm00377a022
• 作为产物：
  描述：

  3-甲基巴豆酰氯 在 三氯化铝 、 sodium hydride 作用下， 以 二氯甲烷 为溶剂， 反应 17.25h， 生成 4,4-dimethyl-2-oxo-3,4-dihydro-2H-1-benzothiopyran
  参考文献：
  名称：

  Conformationally restricted retinoids

  摘要：

  A series of conformationally restricted retinoids was synthesized and screened in two assays used to measure the ability of retinoids to control cell differentiation, namely, the reversal of keratinization in tracheal organ culture from vitamin A deficient hamsters and the inhibition of the induction of mouse epidermal ornithine decarboxylase by a tumor promoter. These compounds had bonds corresponding to selected bonds of the E-tetraene chain of retinoic acid (1) held in a planar cisoid conformation by inclusion in an aromatic ring. The meta-substituted analogue 3 of 4-[(E)-2-methyl-4-(2,6,6-trimethylcyclohexenyl)-1,3-butadienyl+ ++]benzoic acid (2) was far less active than 2 in both assays. In contrast, the vinyl homologue of 2 (4) and the 7,8-dihydro and 7,8-methano analogues (5 and 6) had activity comparable to that of 2. Analogues of 4-[(E)-2-(1,1,4,4-tetramethyl-1,2,3,4-tetrahydro-6-naphthyl)propenyl] benzoic acid (7) were also screened. Replacement of the tetrahydronaphthalene ring of 7 by a benzonorbornenyl group (9) significantly reduced activity, as did removal of the vinylic methyl group from 9 (10). Replacement of the propenyl group of 9 by a cyclopropane ring (12) also reduced activity. Replacement of the tetrahydronaphthalene ring of 7 by 4,4-dimethyl-3,4-dihydro-2H-1-benzopyran and -benzothiopyran rings (13 and 14) also decreased activity. Inclusion of the 7,9 double bond system of 1 in an aromatic ring (15 and 16) reduced activity, whereas inclusion of the 5,7 double bond system in an aromatic ring enhanced activity (7 and 19). Inclusion of the 11,13 and 9,11,13 double bond systems in aromatic rings (2 and 18) also reduced activity below that of 1. Retinoic acid, 7, 13, 14, and 19 inhibited papilloma tumor formation in mice. Toxicity testing indicated that 7 was more toxic than 1, 13, 14, and 19, 19 was more toxic than 1, and 13 and 14 were less toxic than 1.

  DOI：

  10.1021/jm00377a022

文献信息

• Drug conjugates
  申请人：Ojima Iwao

  公开号：US20050232928A1

  公开（公告）日：2005-10-20

  A compound having the formula Y-A-Z, wherein: A is a 5, 6, or 7 member ring that is monocyclic or is fused to 1 to 3 additional 4 to 8 member rings; wherein ring A and, independently, the fused additional rings are carbocyclic or heterocyclic, and saturated or unsaturated, wherein unsaturated rings are aromatic or non-aromatic; wherein Y and Z are substituents at adjacent positions on ring A; Y represents: Z represents: X and E represent O, S, or NR a or NR b ; each of a, b, c, d, e and f independently represents 0 or 1; a+c equals 0, 1, or 2; b+d equals 0, 1, or 2; a+b+c+d+e+f equals 1, 2, or 3; provided that when f is 1, then d is 1, and when d is 0, then f is 0; and when both e and b are 0, then neither R 1 nor R 1 is chloro or bromo; v represents 0 or 1, provided that when v is 0, then J is hydrogen, a metal ion, or a quaternary ammonium ion; and X is O and G is H; either G is hydrogen, a metal ion, a quaternary ammonium ion, lower alkyl, or comprised of a pharmaceutically active chemical compound or the precursor thereof; or X-G represents a carbonyl-activating group; J is lower alkyl, aryl, heteroaryl, omega-hydroxycarbonyl-(lower alkyl), omega-(lower alkoxy)carbonyl-(lower alkyl), omega-(X-G)-carbonyl-(lower alkyl) group, or comprised of a specific binding agent; and R a , R b , R 1 , R 2 , R 3 , R 4 are as defined in the specification.

  具有Y-A-Z分子式的化合物，其中：A是一个5、6或7成员环，可以是单环的，也可以与1至3个额外的4至8成员环融合；其中环A和额外融合的环独立地可以是碳环或杂环，饱和或不饱和，不饱和环可以是芳香的或非芳香的；其中Y和Z是环A上相邻位置的取代基；Y代表：Z代表：X和E代表O、S或NRa或NRb；a、b、c、d、e和f中的每一个独立地代表0或1；a+c等于0、1或2；b+d等于0、1或2；a+b+c+d+e+f等于1、2或3；条件是当f为1时，d为1，当d为0时，f为0；当e和b都为0时，R1和R1都不是氯或溴；v代表0或1，条件是当v为0时，J为氢、金属离子或季铵离子；X为O且G为H；G为氢、金属离子、季铵离子、低碳基，或由药用活性化学化合物或其前体组成；或者X-G代表一个羰基活化基团；J为低碳基、芳基、杂环基、ω-羟基羰基-(低碳基)、ω-(低烷氧基)羰基-(低碳基)、ω-(X-G)-羰基-(低碳基)基团，或由特异结合剂组成；而Ra、Rb、R1、R2、R3、R4如规范中所定义。
• DRUG CONJUGATES
  申请人：Ojima Iwao

  公开号：US20080139815A1

  公开（公告）日：2008-06-12

  A compound having the formula Y-A-Z, wherein: A is a 5, 6, or 7 member ring that is monocyclic or is fused to 1 to 3 additional 4 to 8 member rings; wherein ring A and, independently, the fused additional rings are carbocyclic or heterocyclic, and saturated or unsaturated, wherein unsaturated rings are aromatic or non-aromatic; wherein Y and Z are substituents at adjacent positions on ring A; Y represents: Z represents: X and E represent O, S, or NR a or NR b ; each of a, b, c, d, e and f independently represents 0 or 1; a+c equals 0, 1, or 2; b+d equals 0, 1, or 2; a+b+c+d+e+f equals 1, 2, or 3; provided that when f is 1, then d is 1, and when d is 0, then f is 0; and when both e and b are 0, then neither R 1 nor R 2 is chloro or bromo; v represents 0 or 1, provided that when v is 0, then J is hydrogen, a metal ion, or a quaternary ammonium ion, and X is O and G is H; either G is hydrogen, a metal ion, a quaternary ammonium ion, lower alkyl, or comprised of a pharmaceutically active chemical compound or the precursor thereof; or X-G represents a carbonyl-activating group; J is lower alkyl, aryl, heteroaryl, omega-hydroxycarbonyl-(lower alkyl), omega-(lower alkoxy)carbonyl-(lower alkyl), omega-(X-G)-carbonyl-(lower alkyl) group, or comprised of a specific binding agent; and R a , R b , R 1 , R 2 , R 3 , R 4 are as defined in the specification.

  化合物的化学式为Y-A-Z，其中：A是一个5、6或7个成员环，可以是单环或与1到3个其他4到8个成员环融合；其中，环A和独立的融合环均为碳环或杂环，饱和或不饱和，不饱和环为芳香或非芳香；Y和Z是环A上相邻位置的取代基；Y代表：Z代表：X和E代表O、S或NRa或NRb；a、b、c、d、e和f中的每一个都独立地表示0或1；a+c等于0、1或2；b+d等于0、1或2；a+b+c+d+e+f等于1、2或3；但当f为1时，则d为1，当d为0时，则f为0；当e和b都为0时，则R1和R2均不是氯或溴；v表示0或1，但当v为0时，则J为氢、金属离子或季铵离子，而X为O且G为H；G可以是氢、金属离子、季铵离子、低碳基或由药物活性化合物或其前体组成；或者X-G表示一个羰基活化基团；J是低碳基、芳基、杂环基、ω-羟基羧酸-(低碳基)、ω-(低烷氧基)羧酸-(低碳基)、ω-(X-G)-羧酸-(低碳基)基团，或由特定结合剂组成；Ra、Rb、R1、R2、R3、R4如说明书所定义。
• Sulfur-Atom Transfer from Elemental Sulfur to Nickel−Carbon Bonds as a New Route to Reactive Nickel(II) Thiolates
  作者：Runyu Han、Gregory L. Hillhouse

  DOI：10.1021/ja981266x

  日期：1998.8.1
• BENZONORBORNENYL, BENZOPYRANYL AND BENZOTHIOPYRANYL RETINOIC ACID ANALOGUES
  申请人：SRI INTERNATIONAL

  公开号：EP0155940A1

  公开（公告）日：1985-10-02
• US7282590B2
  申请人：——

  公开号：US7282590B2

  公开（公告）日：2007-10-16