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(4R,5R)-1,3-dibenzyl-3,3a,6,6a-tetrahydro-1H-thieno[3,4-d]imidazole-2,4-dione | 541508-62-7

中文名称
——
中文别名
——
英文名称
(4R,5R)-1,3-dibenzyl-3,3a,6,6a-tetrahydro-1H-thieno[3,4-d]imidazole-2,4-dione
英文别名
(3aR,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazole-2,4-dione;(3aR,6aR)-1,3-dibenzylhexahydro-4H-thieno[3,4-d]imidazol-2,4-dione;(3aR,6aR)-1,3-dibenzyl-hexahydro-4H-thieno[3,4-d]imidazol-2,4-dione;(3aR,6aR)-1,3-dibenzyl-6,6a-dihydro-3aH-thieno[3,4-d]imidazole-2,4-dione
(4R,5R)-1,3-dibenzyl-3,3a,6,6a-tetrahydro-1H-thieno[3,4-d]imidazole-2,4-dione化学式
CAS
541508-62-7
化学式
C19H18N2O2S
mdl
——
分子量
338.43
InChiKey
XJZIDYQGGLZUIO-DLBZAZTESA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    115-116 °C(Solv: ethyl acetate (141-78-6))
  • 沸点:
    578.4±50.0 °C(Predicted)
  • 密度:
    1.331±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.8
  • 重原子数:
    24
  • 可旋转键数:
    4
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.26
  • 拓扑面积:
    65.9
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • (3aS,6aR)-1,3-二苄基-四氢-4H-噻吩并 [3,4-d]咪唑-2,4-(1H)-二酮的简便制备方法
    申请人:新发药业有限公司
    公开号:CN103936759B
    公开(公告)日:2016-01-13
    本发明涉及一种(3aS,6aR)-1,3-二苄基-四氢-4H-噻吩并[3,4-d]咪唑-2,4-(1H)-二酮的简便制备方法。该方法包括:以L-半胱氨酸甲/乙酯盐酸盐为初始原料经N-苄基保护、酯基还原、巯基保护得(R)-2-苄基氨基-3-乙酰巯基丙醇,再利用三氧化硫-吡啶氧化制成醛,所得产物和苄胺、氰化钠反应制得(2R、2S),(3R)-二苄基氨基-4-乙酰巯基正丁腈,再经酰胺化及脱保护成环制备(3aS,6aR),(3aR,6aR)-1,3-二苄基-四氢-4H-噻吩并[3,4-d]咪唑-2,4-(1H)-二酮,最后热重排得目标产物。本发明方法原料价廉易得,反应条件易于操作,且反应选择性高、成本低,适于工业化生产。
  • Intermediate for biotin and process for producing the same
    申请人:Seki Masahiko
    公开号:US20050038260A1
    公开(公告)日:2005-02-17
    The present invention is to provide a process for preparing a synthetic intermediate of biotin which is industrially advantageous, and discloses a process for preparing a compound represented by the formula (I): wherein R 1 and R 2 may be the same or different from each other, and each represents hydrogen atom, a benzyl group which may have a substituent(s) on the benzene ring, a benzhydryl group which may have a substituent(s) on the benzen ring, or a trityl group which may have a substituent(s) on the benzene ring, R 3 represents cyano group, carboxyl group, an alkoxycarbonyl group, an alkylthiocarbonyl group, or a carbamoyl group which may have a substituent, or a salt thereof which comprises subjecting a compound represented by the formula (II-a): wherein the symbols have the same meanings as defined above, or a salt thereof to ring transformation.
    本发明提供了一种制备生物素合成中间体的工业优势过程,并披露了一种制备由式(I)表示的化合物的过程:其中R1和R2可以相同也可以不同,分别代表氢原子、苯甲基,苯环上可能带有取代基的苯甲基,苯环上可能带有取代基的苯基甲基,或苯环上可能带有取代基的三苯甲基;R3代表氰基、羧基、烷氧基羰基、烷基硫酰基、或可能带有取代基的氨基甲酰基,或其盐;该过程包括将式(II-a)表示的化合物:其中符号具有上述定义的相同含义,或其盐进行环转化。
  • Biotin intermediate and process for preparing the same
    申请人:Seki Masahiko
    公开号:US20080119655A1
    公开(公告)日:2008-05-22
    The present invention is to provide a process for preparing a synthetic intermediate of biotin which is industrially advantageous, and discloses a process for preparing a compound represented by the formula (I): 1 wherein R 1 and R 2 may be the same or different from each other, and each represents hydrogen atom, a benzyl group which may have a substituent(s) on the benzene ring, a benzhydryl group which may have a substituent(s) on the benzen ring, or a trityl group which may have a substituent(s) on the benzene ring, R 3 represents cyano group, carboxyl group, an alkoxycarbonyl group, an alkylthiocarbonyl group, or a carbamoyl group which may have a substituent, or a salt thereof which comprises subjecting a compound represented by the formula (II-a): 2 wherein the symbols have the same meanings as defined above, or a salt thereof to ring transformation.
    本发明提供了一种制备生物素合成中间体的工业优势过程,并揭示了一种制备由式(I)表示的化合物的过程:其中R1和R2可以相同也可以不同,分别表示氢原子,苯基(苯环上可能有取代基),苯基甲基(苯环上可能有取代基),或三苯甲基(苯环上可能有取代基);R3表示氰基,羧基,烷氧基羰基,烷基硫氧基羰基或氨基甲酰基(可能带有取代基),或其盐,该过程包括将式(II-a)表示的化合物:其中符号具有上述定义的相同含义,或其盐进行环转化。
  • Novel practical stereoselective synthesis of a bicyclic hydantoino-thiolactone as the key intermediate for production of (+)-biotin
    作者:Lei Shu、Zhi-Wei Yang、Ren-Xu Cao、Xiao-Xia Qiu、Feng Ni、Xiao-Xin Shi
    DOI:10.1039/d3ra04721k
    日期:——
    Bicyclic hydantoinothiolactone (1), as the key intermediate for production of (+)-biotin, has been efficiently and high-stereoselectively synthesized from the cheap starting material l-cystine via nine steps in 44% overall yield. In this new practical synthesis, there are two characteristic steps worthy of note. One step is TMSOTf-catalyzed efficient cyanation of (3S,7aR)-6-benzyl-5-oxo-3-phenyltetrahydro-1H
    双环乙内酰硫代内酯 (1) 作为生产 (+)-生物素的关键中间体,以廉价的起始原料 L-胱氨酸为原料,经过九步高效、高立体选择性合成,总产率为 44%。在这个新的实用合成中,有两个特征步骤值得注意。第一步是TMSOTf催化(3S,7aR)-6-苄基-5-氧代-3-苯基四氢-1H,3H-咪唑并[1,5-c]噻唑-7-乙酸酯的高效氰化,另一步是DBU 催化双环乙内酰硫内酯的反式异构体快速异构化为顺式异构体。
  • 2-Thiazolidinone: a novel thiol protective surrogate of complete atom efficiency, a practical synthesis of (+)-biotin
    作者:Masahiko Seki、Mayumi Kimura、Masanori Hatsuda、Shin-ichi Yoshida、Toshiaki Shimizu
    DOI:10.1016/j.tetlet.2003.09.202
    日期:2003.12
    2-Thiazolidinone derivatives were shown to be novel protective surrogates of a thiol group in L-cysteine derivatives. After elaboration at the C-4 substituent, the thiol group was completely liberated by simple heating in DMF whose atom efficiency is 100%. A practical synthesis of (+)-biotin was accomplished by the use of the strategy employing 4-functionalized 2-thiazolidinone derivatives as the intermediates, allowing a synthesis of (+)-biotin in 10 steps and in 31%, overall yield. Short steps, high yield, and ease of operation of the present approach Would permit the hitherto most efficient access to (+)-biotin. (C) 2003 Elsevier Ltd. All rights reserved.
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