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4-methyl-4,5-dihydro-3(2H)-pyridazinone | 105537-87-9

中文名称
——
中文别名
——
英文名称
4-methyl-4,5-dihydro-3(2H)-pyridazinone
英文别名
4-methyl-4,5-dihydro-2H-pyridazin-3-one;4-Methyl-4,5-dihydro-2H-pyridazin-3-on;4-methyl-4,5-dihydropyridazin-3(2H)-one;5-methyl-4,5-dihydro-1H-pyridazin-6-one
4-methyl-4,5-dihydro-3(2H)-pyridazinone化学式
CAS
105537-87-9
化学式
C5H8N2O
mdl
——
分子量
112.131
InChiKey
AHWLNKORVXQHFB-UHFFFAOYSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    -0.5
  • 重原子数:
    8
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.6
  • 拓扑面积:
    41.5
  • 氢给体数:
    1
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    4-methyl-4,5-dihydro-3(2H)-pyridazinone 氢气sodium acetate一水合肼三氯氧磷 作用下, 以 甲醇正丁醇 为溶剂, 20.0~100.0 ℃ 、101.33 kPa 条件下, 反应 13.0h, 生成 3-氨基-4-甲基哒嗪
    参考文献:
    名称:
    一系列作为选择性GABA-A拮抗剂的γ-氨基丁酸氨基哒嗪衍生物的合成与构效关系。
    摘要:
    我们最近发现,GABA的芳基氨基哒嗪衍生物SR 95103 [2-(3-羧丙基)-3-氨基-4-甲基-6-苯基吡啶并鎓氯化物]是一种选择性和竞争性的GABA-A受体拮抗剂。为了进一步探索对GABA受体亲和力的结构要求,我们通过将各种哒嗪结构连接到GABA或GABA样侧链上,合成了38种化合物。大多数化合物从大鼠脑膜中取代了[3H] GABA。所有活性化合物都拮抗了GABA引起的[3H]地西p结合的增强,强烈表明所有这些化合物都是GABA-A受体拮抗剂。从大鼠脑膜置换[3H] GABA的化合物均未与其他GABA识别位点(GABA-B受体,GABA吸收结合位点,谷氨酸脱羧酶,GABA转氨酶)相互作用。它们不与与GABA-A受体相关的Cl-离子载体相互作用,也不与苯并二氮杂str,士的宁和谷氨酸结合位点相互作用。因此,这些化合物似乎是特异性的GABA-A受体拮抗剂。就结构活性而言,可以得出结论,
    DOI:
    10.1021/jm00385a003
  • 作为产物:
    参考文献:
    名称:
    Residential rehabilitation for drug users: a review of 13 months' intake to a therapeutic community
    摘要:
    背景。 以 "治疗社区 "治疗为基础的住院康复治疗对全科医生和其他介绍吸毒者接受治疗的人来说是一种很有吸引力的治疗方法。虽然有证据表明以维持为基础的戒毒计划对吸毒者是有效的,但对以禁欲为基础的戒毒计划的有效性进行评估的尝试较少,因为这些计划的干预强度相对较大,费用也较高。本文报告并评估了 138 名吸毒者在寄宿社区接受 13 个月戒毒治疗的结果。我们利用现有的临床和住宿记录数据开展了一项回顾性队列研究。研究地点是英国谢菲尔德由慈善机构凤凰之家(Phoenix House)运营的一家寄宿康复中心,该中心为海洛因成瘾者提供为期一年的项目,包括由初级保健专科医生监督的社区戒毒和寄宿康复。参与者为 1998 年 2 月 1 日至 1999 年 2 月 28 日(含)期间接受治疗的所有患者。我们对该中心的临床记录以及临床医生和工作人员保存的其他记录进行了分析。衡量结果的指标是治疗保留天数和离开的原因,分为完成治疗、计划内或计划外离开以及被逐出计划。对于接受内部戒毒的患者,另一项结果衡量指标是出院时是否完成戒毒。85%的入院患者主要滥用海洛因。对毒品产生依赖的平均时间为 8 年(1.3-20.1 年不等)。平均住院时间为 80.2 天(范围为 1-394,95% 置信区间为 61.8-98.6)。有 34 人(25%)住院时间达到或超过 90 天。在住院时间与年龄、性别、给药途径、使用多种药物、成瘾时间或首次成瘾年龄之间没有发现任何关联。在接受内部戒毒的患者中,65%的人完成了戒毒。按离开戒毒计划的原因将患者分为 "成功 "和 "失败 "两类,94 人(68.1%)被归类为失败,18 人(13.0%)被归类为成功。有 26 名患者的数据无法获得。除了无毒品而不是需要戒毒外,成功与参加时的其他特征无关(P = 0.048,chi-square = 6.06,df = 2)。这项研究表明,在这些长期吸毒者中,完成计划的总体水平较低,计划外离开和退出计划的比例较高。另一方面,不应低估在住院康复中实现戒断的人的重要性,也不应低估长期结果受到干预措施所涉及的学习过程影响的可能性。也许可以采用更好的选择程序,以便取得最佳效果。
    DOI:
    10.1093/fampra/18.5.545
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文献信息

  • [EN] SUBSTITUTED AMINO HETEROCYCLES AS VR-1 ANTAGONISTS FOR TREATING PAIN<br/>[FR] AMINO-HETEROCYCLES SUBSTITUES EN TANT QU'ANTAGONISTES DU VR-1 POUR TRAITER LA DOULEUR
    申请人:MERCK SHARP & DOHME
    公开号:WO2004074290A1
    公开(公告)日:2004-09-02
    The present invention provides compounds of formula I: in which: one of T1 and T4 is N and the other is C; T2 and T3 are independently N or C(CH2)nR2; X, Y and Z are independently N or C(CH2)nR3; R1 is Ar1 or R1 is C1-6alkyl optionally substituted with one or two groups Ar1; Ar1 is an optionally substituted cyclohexyl, piperidinyl, piperazinyl, morpholinyl, adamantyl, phenyl, naphthyl, a six-membered heteroaromatic ring containing one, two or three nitrogen atoms, a five-membered heteroaromatic ring containing one, two, three or four heteroatoms chosen from O, N and S, at most one O or S atom being present, or a nine- or ten-membered bicyclic heteroaromatic ring in which phenyl or a six-membered heteroaromatic ring as defined above is fused to a six-or five-membered heteroaromatic ring as defined above; Ar is an optionally substituted phenyl, a six-membered heteroaromatic ring containing one, two or three nitrogen atoms or a five-membered heteroaromatic ring containing one, two, three or four heteroatoms chosen from O, N and S, at most one heteroatom being O or S, Ar being optionally substituted by one, two or three groups chosen from halogen, CF3, OCF3, C1-6alkyl, C2-6alkenyl, C2-6alkynyl, nitro, cyano, isonitrile, hydroxy, C1-6alkoxy, C1-6alkylthio, -NR6R7, -CONR6R7, -COH, CO2H, C1-6alkoxycarbonyl, haloC1-6alkyl, hydroxyC1-6alkyl, aminoC1-6alkyl, C1-6alkylcarbonyl and a five-membered heteroaromatic ring containing one, two, three or four heteroatoms chosen from O, N and S, at most one heteroatom being O or S, optionally substituted by C1-6alkyl, halogen, amino, hydroxy or cyano; or a pharmaceutically acceptable salt thereof as a VR-1 ligand; pharmaceutical compositions comprising it; its use in therapy; use of it in the manufacture of a medicament to treat pain; and methods of treating subjects suffering from pain.
    本发明提供了式I的化合物:其中:T1和T4中的一个是N,另一个是C; T2和T3独立地是N或C(CH2)nR2; X,Y和Z独立地是N或C(CH2)nR3; R1是Ar1或R1是C1-6烷基,可选地取代一个或两个Ar1基团; Ar1是可选取代的环己基,哌啶基,哌嗪基,吗啉基,金刚烷基,苯基,萘基,一个六元杂环芳香环,其中含有一个,两个或三个氮原子,一个五元杂环芳香环,其中选择了一个,两个,三个或四个杂原子从O,N和S中选择,最多只有一个O或S原子存在,或一个九元或十元的双环杂芳香环,其中苯基或上述定义的六元杂环芳香环与上述定义的六元或五元杂环芳香环融合; Ar是可选取代的苯基,一个含有一个,两个或三个氮原子的六元杂环芳香环或一个含有一个,两个,三个或四个从O,N和S中选择的杂原子的五元杂环芳香环,最多只有一个杂原子是O或S,Ar可选地取代由卤素,CF3,OCF3,C1-6烷基,C2-6烯基,C2-6炔基,硝基,氰基,异腈基,羟基,C1-6烷氧基,C1-6烷基硫基,-NR6R7,-CONR6R7,-COH,CO2H,C1-6烷氧羰基,卤代C1-6烷基,羟基C1-6烷基,氨基C1-6烷基,C1-6烷基羰基和一个含有一个,两个,三个或四个从O,N和S中选择的杂原子的五元杂环芳香环,最多只有一个杂原子是O或S,可选地被C1-6烷基,卤素,氨基,羟基或氰基取代;或其药学上可接受的盐作为VR-1配体;包含它的制药组合物;其在治疗中的用途;将其用于制造治疗疼痛的药物;以及治疗患有疼痛的受试者的方法。
  • Synthesis and structure-activity relationships of a series of aminopyridazine derivatives of .gamma.-aminobutyric acid acting as selective GABA-A antagonists
    作者:Camille Georges Wermuth、Jean Jacques Bourguignon、Gilbert Schlewer、Jean Pierre Gies、Angele Schoenfelder、Anita Melikian、Marie Jeanne Bouchet、Dominique Chantreux、Jean Charles Molimard
    DOI:10.1021/jm00385a003
    日期:1987.2
    We have recently shown that an arylaminopyridazine derivative of GABA, SR 95103 [2-(3-carboxypropyl)-3-amino-4-methyl-6-phenylpyridazinium chloride], is a selective and competitive GABA-A receptor antagonist. In order to further explore the structural requirements for GABA receptor affinity, we synthesized a series of 38 compounds by attaching various pyridazinic structures to GABA or GABA-like side
    我们最近发现,GABA的芳基氨基哒嗪衍生物SR 95103 [2-(3-羧丙基)-3-氨基-4-甲基-6-苯基吡啶并鎓氯化物]是一种选择性和竞争性的GABA-A受体拮抗剂。为了进一步探索对GABA受体亲和力的结构要求,我们通过将各种哒嗪结构连接到GABA或GABA样侧链上,合成了38种化合物。大多数化合物从大鼠脑膜中取代了[3H] GABA。所有活性化合物都拮抗了GABA引起的[3H]地西p结合的增强,强烈表明所有这些化合物都是GABA-A受体拮抗剂。从大鼠脑膜置换[3H] GABA的化合物均未与其他GABA识别位点(GABA-B受体,GABA吸收结合位点,谷氨酸脱羧酶,GABA转氨酶)相互作用。它们不与与GABA-A受体相关的Cl-离子载体相互作用,也不与苯并二氮杂str,士的宁和谷氨酸结合位点相互作用。因此,这些化合物似乎是特异性的GABA-A受体拮抗剂。就结构活性而言,可以得出结论,
  • Residential rehabilitation for drug users: a review of 13 months' intake to a therapeutic community
    作者:J. Keen、P. Oliver、G. Rowse、N. Mathers
    DOI:10.1093/fampra/18.5.545
    日期:2001.10.1
    Background. Residential rehabilitation based on ‘therapeutic community’ treatment for drug users is a treatment option which is attractive to GPs and others referring drug users for treatment. Whilst there is evidence that maintenance-based programmes for drug users are effective, there have been fewer attempts to evaluate the effectiveness of abstinence-based programmes which are relatively more intensive and expensive interventions.Objective. This paper reports and evaluates the outcomes for 13 months' intake of 138 drug users to a residential community.Methods. We carried out a retrospective cohort study using existing clinical and residential record data. The setting is a residential rehabilitation centre run by the charity Phoenix House in Sheffield, UK, offering a 1-year programme for heroin addicts including community detoxification overseen by primary care specialist doctors and residential rehabilitation. Participants were all patients who entered treatment between 1 February 1998 and 28 February 1999 inclusive. An analysis was carried out of clinical records and other records kept by clinicians and staff at the centre. Outcome measures were numbers of days of retention in treatment and reasons for departure, categorized as completed treatment, planned or unplanned departure and expulsion from the programme. For patients who underwent in-house detoxification, a further outcome measure was whether or not detoxification was complete at discharge.Results. Heroin was the main drug of abuse in 85% of admissions. Mean length of time for which individuals had been drug dependent was 8 years (range 1.3–20.1 years). The mean length of stay was 80.2 days (range 1–394, 95% confidence interval 61.8–98.6). Thirty-four individuals (25%) completed 90 days or more. No association was found between length of stay and age, sex, route of administration, polydrug use, length of time addicted or age of first addiction. Sixty-five per cent of those who received in-house detoxification completed the detoxification period. When patients were classified as ‘successes’ or ‘failures’ by reason for departure from the programme, 94 (68.1%) were classified as failures and 18 (13.0%) as successes. Data were unavailable for 26 patients. Success was not associated with any characteristic at entry apart from being drug free as opposed to requiring detoxification (P = 0.048, chi-square = 6.06, df = 2).Conclusion. This study shows overall low levels of programme completion and high levels of unplanned departure and eviction from the programme amongst these long-term drug users. On the other hand, the importance of abstinence for those who achieve it in residential rehabilitation should not be underestimated, nor should the possibility that long-term outcomes are influenced by the learning process involved in the intervention. It may be possible to operate better selection procedures in order to optimize outcomes.
    背景。 以 "治疗社区 "治疗为基础的住院康复治疗对全科医生和其他介绍吸毒者接受治疗的人来说是一种很有吸引力的治疗方法。虽然有证据表明以维持为基础的戒毒计划对吸毒者是有效的,但对以禁欲为基础的戒毒计划的有效性进行评估的尝试较少,因为这些计划的干预强度相对较大,费用也较高。本文报告并评估了 138 名吸毒者在寄宿社区接受 13 个月戒毒治疗的结果。我们利用现有的临床和住宿记录数据开展了一项回顾性队列研究。研究地点是英国谢菲尔德由慈善机构凤凰之家(Phoenix House)运营的一家寄宿康复中心,该中心为海洛因成瘾者提供为期一年的项目,包括由初级保健专科医生监督的社区戒毒和寄宿康复。参与者为 1998 年 2 月 1 日至 1999 年 2 月 28 日(含)期间接受治疗的所有患者。我们对该中心的临床记录以及临床医生和工作人员保存的其他记录进行了分析。衡量结果的指标是治疗保留天数和离开的原因,分为完成治疗、计划内或计划外离开以及被逐出计划。对于接受内部戒毒的患者,另一项结果衡量指标是出院时是否完成戒毒。85%的入院患者主要滥用海洛因。对毒品产生依赖的平均时间为 8 年(1.3-20.1 年不等)。平均住院时间为 80.2 天(范围为 1-394,95% 置信区间为 61.8-98.6)。有 34 人(25%)住院时间达到或超过 90 天。在住院时间与年龄、性别、给药途径、使用多种药物、成瘾时间或首次成瘾年龄之间没有发现任何关联。在接受内部戒毒的患者中,65%的人完成了戒毒。按离开戒毒计划的原因将患者分为 "成功 "和 "失败 "两类,94 人(68.1%)被归类为失败,18 人(13.0%)被归类为成功。有 26 名患者的数据无法获得。除了无毒品而不是需要戒毒外,成功与参加时的其他特征无关(P = 0.048,chi-square = 6.06,df = 2)。这项研究表明,在这些长期吸毒者中,完成计划的总体水平较低,计划外离开和退出计划的比例较高。另一方面,不应低估在住院康复中实现戒断的人的重要性,也不应低估长期结果受到干预措施所涉及的学习过程影响的可能性。也许可以采用更好的选择程序,以便取得最佳效果。
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