CN1024551C - 吲哚衍生物的制备方法 - Google Patents
吲哚衍生物的制备方法 Download PDFInfo
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- CN1024551C CN1024551C CN89102030A CN89102030A CN1024551C CN 1024551 C CN1024551 C CN 1024551C CN 89102030 A CN89102030 A CN 89102030A CN 89102030 A CN89102030 A CN 89102030A CN 1024551 C CN1024551 C CN 1024551C
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
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Abstract
本发明涉及吲哚衍生物,及制备该化合物的方法含有这些化合物的药物组合物。
Description
本发明涉及吲哚衍生物,及制备该化合物的方法和含有这些化合物的药物组合物。
目前适用的降血压剂首先包括利尿剂,血管扩张剂,抗交感神经药剂,钙对抗剂,以及转化酶抑制剂,按照潜在的疾病的严重程度和菌谱,这些药剂通过不同的机理在起着作用,在某些病例中可能会产生不相容性,也可能会导致出现不希望的副作用。其结果是不仅有必要使医生停止其治疗过程,而且由于意识到能引起的某些副作用,患者也要停止接受这种治疗。
因此,对副作用发生率低的高血压需要一种有效治疗方法,这些副作用是病理性血压增高,心率
加速和局部缺血性心脏病。
吲哚生物碱厄磺胺(ervatamine)(G.S.Glasby,Encyclopcdia of the Alkaloids,Vol.l.(1975)和methuenine(P.Bakana,R.Dommisse,E.Esmans,R.Fokkens,J.Totte N.M.N.Nibbering和A.J.Vlietinck,Planta Medica,51,331/1984),这两种物质的化学结构与现有技术已知的酰基吲哚类似,但是,并不知道它们可以作为降血压剂或心搏徐缓诱发剂。
令人惊奇地发现。新合成的通式(Ⅰ)吲哚化合物通过优势-受体-途径,在具备降血压作用的同时,也可使心搏徐缓。
因此,本发明提供具有通式(Ⅰ)的吲哚衍生物。
其中,R1到R4可以是相同的或不同的氢或卤素原子,C1-C4-烷基,带有1-3个卤素原子的卤甲基,C1-C4-烷氧基,羟基,氨基,C1-C4烷基氨基,C1-C4二烷基氨基,C1-C3烷基亚磺酰氨基,芳基亚磺酰氨基,C1-C3酰氨基,C1-C3酰基,C1-C3-酰氧基,氰基,羧基,C1-C4-烷氧羰基,亚甲二氧基或亚乙二氧基;R5和R6同是一个桥氧基,或R5或R6之一代表一个氢原子,另一个为羟基或C1-C4-烷氧基;R7和R8可以是相同或不同的氢,C1-C4-烷基,苄基或C1-C3酰基团,在4和4a及5,或4a和12a位的碳原子之间的虚线可以是单或双键;或一种药理上允许的由上述化合物形成的盐类。
优选的上述烷基(包括取代烷基如烷氧基,烷氨基等)为甲基。优选的酰基为乙酰基。优选的芳基为苯基,其取代基包括1个或多个C1-C4-烷基,C1-C4-烷氧基,硝基,氨基或羟基,或卤素原子。
所谓:卤素原子”包括氟,氯,溴和碘原子,特别是氟,氯和溴原子。
当4和4a及5或4a和12a位的碳原子之间的虚线不代表双键时,即,在这些位置之间为单键时,在4a和12a位的氢原子相互之间最好为顺位。
根据本发明所优选的化合物是:通式(Ⅰ)的化合物,其中R1-R4为相同或不同的1个氢原子或卤素原子,一个C1-C4-烷基,C1-C4-烷氧基,羟基或亚甲二氧基,或者药理上允许的由上述化合物形成的盐类。
根据本发明的进一步优选的化合物是通式(Ⅰ)的化合物,其中R1-R4可以是相同或不同的一个氢原子或卤素原子,或一个C1-C4-烷基。优选的R7是一个氢原子,R8是一个氢原子或一个C1-C4-烷基。
更为优选的化合物,R7是一个氢原子,R5和R6同是一个桥氧基,而R8是一个甲基。
本发明也包括药理上允许的上述通式(Ⅰ)的化合物形成的盐类。这些盐类可以是无机酸的酸加成盐,例如盐酸,硫酸,磷酸,或者有机酸的酸加成盐,如马来酸,富马酸,乳酸,酒石酸,苹果酸,柠檬酸等等。优选的酸加成盐为盐酸盐和半酒石酸盐及酒石酸盐。
当根据本发明的化合物含有酸基团时,也可制备与碱所成的相应盐类。这些碱包括碱金属和碱土金属氢氧化物,氨或有机胺,如单一,双一和三烷基胺,相应的羟基烷基胺等等。
本发明的化合物可以由相应的2-乙酰吲哚化合物制备。该制备方法包括下列步骤(在下列通式(Ⅰ)至(Ⅴ)中,符号R1到R5与上述含义相同。
步骤A
通式(Ⅱ)的一种化合物
与N,N-二甲基亚甲铵卤化物反应,后者按已知方法新制备的。所获得的化合物为通式(Ⅲ):
反应在无水溶剂中,如乙腈,二恶烷,四氢呋喃等等,反应温度为室温或高温,例如20-80℃,在惰性气体复盖下进行。
步骤B
所获得的通式(Ⅲ)的化合物与通式(Ⅳ)的化合物反应:
得到通式(Ⅴ)的化合物
反应在适当的溶剂中进行,如乙腈或一种醚,如二恶烷,四氢呋喃,乙二醇二甲醚,或一种卤代烃,例如二氯甲烷或氯仿,等等,升高温度,最好在溶剂回流下进行。
步骤C
所获得的通式(Ⅴ)的化合物在碱存在条件下,反应生成通式(Ⅰ)化合物。合适的碱包括:如叔丁醇钾,叔丁醇钠,叔戊醇钠等等。作为优选的溶剂为一种醚,如四氢呋喃,二恶烷,乙二醇二甲醚等等。优选的反应温度为室温。
在通式(Ⅰ)化合物里,R5和R6同是一个桥氧基,在4和4a或4a和5或4a和12a位的碳原子之间的虚线处是双键。双键的位置可由选择适当的溶剂来控制。
如果希望通式(Ⅰ)化合物在虚线位置不是双键时,在惯用的氢化催化剂存在下,对不饱和产物进行氢化。不管现在的三个可能位置如何,双键都被氢化,适宜的氢化催化剂是Pd/炭,Rh/炭,Pt/炭或PtO2。氢化过程可在大气压下或升压下,在低温或高温下在适宜的溶剂中进行,溶剂的例子如醇类,如甲醇或乙醇,或一种醚如四氢呋喃。
如果希望在通式(Ⅰ)的化合物中,R5和R6中的一个表示羟基或烷氧基时,则上述通式(Ⅰ)化合物的R5和R6代表一个桥氧基,可还原成相应的羟基化合物,如果需要,再进行烷基化。这些反应按通常方法进行,例如,在上述的贵金属催化剂下,通过相应长的氢化过程,或借助复合金属氢化物,如氢化铝锂或硼钠氢化物通过还原,然后在强碱存在下,用例如甲醇进行烷基取代。
本发明的化合物可用于治疗人类和动物的心脏循环疾病,尤其对治疗低血压,心搏徐缓和局部性缺血性心脏病有效。
因此,本发明还提供至少含本发明的一种化合物的药剂,可任意地与药理上可接受的载体和/或辅助剂一起配制而成。
药剂可以按任意适当的给药方式进行配制,结合本发明的化合物,这些药剂可配制成注射剂,作成在安瓿中含一个有效的单位剂量,或在容器中含有多剂量,如必要,可加用一种适当的防腐剂。药剂也可以悬浮液,溶液,油性乳剂,和水性载体等形式存在,并含有辅助剂如悬浮剂,稳定剂和/或分散剂。
本发明的化合物也可以口服给药,如片剂,胶囊,糖衣药丸之类。作为固体状的制剂,可加入适当的辅助剂如淀粉,润滑剂例如硬脂酸镁,阿拉伯树胶,滑石之类。
本发明的化合物也可制成栓剂,这些栓剂包含,例如传统的栓剂基剂,如可可油或其它甘油酯。
根据给药的方法,组合物中可含0.1%到多至例如0.1到99%的活性物质,如果组合物包含一单位的剂量,最好每单位含0.5至100mg活性物料。
医治患者所采用的剂量取决于各人的状况,以每天0.5到250mg的用量范围为最佳,这取决于各人状况和病的严重程度,可采用口服或肠胃外给药。
本发明的药剂也可同其它治疗剂结合使用,例如其它心脏循环剂或利尿剂。
本发明也涉及通式(Ⅴ)的化合物:
其中,优选的R1、R2、R3、R4和R7是氢,R8是甲基:通式Ⅵ(SI-WG331)。这些化合物的药理作用与上述通式(Ⅰ)的化合物类似。
下述实施例的目的是用于说明本发明。
实施例1
化合物1,3,4,4a,5,7,12,12a-八-氢-2-甲基-2H-吡啶并[3′,4′:4,5]环庚并[Ⅰ,2-b]-吲哚-6-酮的制备
步骤A:2-乙酰基-3-(N,N-二甲氨基甲基)-吲哚(SI-WG343)
187克(2摩尔)N,N-二甲基亚甲基铵氯化物在一种惰性气体存在的情况下(氮气或氩气)悬浮在281无水乙腈中。在搅拌下,悬浮物与159克(1摩尔)粉状干燥2-乙酰吲哚混合加热至沸腾,然后继续搅拌,在7小时过程中均匀冷却至25℃。在20-25℃搅拌过夜,乙腈在真空下大体上被蒸馏出,取出的余渣放在201水中,用浓的氢氧化铵溶液调节到pH9-10范围。这种溶液与二氯甲烷搅拌三次,每次加入51的二氯甲烷。将有机相合并,并用51水清洗。添加无水硫酸钠。将有机相干燥,过滤,再同51叔丁基甲基醚混合。二氯甲烷被大体上蒸馏出,产物便开始结晶。在4℃下放置过夜使结晶完全,产品被抽吸过滤。用正己烷清洗,再在真空中干燥,产量141.7g(理论值的65.6%)
用同样的方法,采用适当被取代的通式(Ⅱ)的2-乙酰吲哚,可获得下列通式(Ⅲa)的化合物:
通式(Ⅲa)的化合物归总在表1中。
步骤B:2-乙酰-3-(N-甲基-4′-哌啶酮-3′-基甲基)-吲哚(SI-WG331)
140.4g(0.65摩尔)根据步骤A所获得的化合物溶解于4.81干燥乙腈中,将293.8(2.6摩尔)N-甲基-4-哌啶酮搅拌加入,然后在回流情况下沸腾24小时。反应混合物在真空中蒸发直到残留物仍保持均匀的液态。通过在二氯甲烷中搅拌沉淀出产品,抽吸过滤,再用正己烷清洗。将母液蒸发干,与正好足量的二氯甲烷煮沸使成溶液,经过冷却,沉淀出的产品抽吸过滤,以正己烷清洗。沉淀出的产品部分与叔丁基甲基醚完全搅拌直至甲基-4-哌啶酮不再能在产品的IH-NMR光谱中见到。通过完全干燥,产品变得如此纯净,以至可在步骤C中用于环合作用。产量117.3克(理论值的63.5%)。
(SI-WG 331)
以同样的方法,采用适当的通式(Ⅲ)和(Ⅳ)的取代前体,可获得下列通式(Ⅴa)的化合物:
通式(Ⅴa)化合物的总结见表2。
步骤C:分子式为1,3,4,5,7,12-六氢-2-
甲基-2H-吡啶并[3′,4′:4,5]-环庚并[I,2-b]-吲哚-6-酮的化合物制备方法:
113.6克(0.4摩尔)按照步骤C所获得的化合物,在惰性气体复盖下(氮或氩),温度约高达40℃下溶解在5.31无水四氢呋喃中,然后冷却到25℃,并将134.6g(1.2摩尔)叔丁醇钾搅拌加入。反应混合物在20-25℃下搅拌30分钟。然后加入121饱和氯化钠溶液,将生成混合物萃取三次,每次在Ultra-Turrax上加6.61二氯甲烷。如有可能,合并的二氯甲烷相用少量饱和的氯化钠溶液清洗成中性,用无水硫酸钠干燥,过滤,再放入真空旋转蒸发器中蒸发干燥。粗制产品可直接用于氢化(步骤D)。粗制产品中的相对少量的双键异构体不会对氢化结果有不良影响。产量72.4克(理论值的68%)。
用相同方法,使用由步骤B得到的通式(Ⅴ)的适当的取代化合物,可获得下列通式(Ⅰa)不饱和化合物:
制备的化合物和该物质的数据的总结见表3。
步骤D:1,3,4,4a,5,7,12,12a-八氢-2-甲基-吡啶并[3′,4′:4,5]环庚并[1,2-b]吲哚-6-酮标题化合物(SI-WG350)的制备:
在带有氩气放气搅拌器的氢化容器中,将72克钯活性炭(5%Pd,干态)和72克(0.27摩尔)由步骤C得到的物质加到3.51纯四氢呋喃溶液中,氢化反应在常压,20-25℃下进行,直到氢吸收结束(60-70小时)。滤去催化剂,再将溶液在旋转蒸发器中,在真空中蒸发干燥,从甲醇里经反复结晶后,获得纯的标题化合物,产量68克(理论值的94%)。
用相同方法,使用步骤C得到的经适当取代的不饱和化合物,可获得下列通式(Ⅰa)的化合物。
制备的化合物和其物质数据总结于表4中。
实施例2
按照步骤D获得的化合物(SI-WG350)转换成氢氯化物的方法。
将14.5克游离相溶解于90ml的甲醇中,在加入5.22ml32%的含水盐酸以后,通过逐渐加入二乙基醚可使产物按定量的产率,结晶沉淀出来。
抽吸过滤掉氢氯化物后,用二乙基醚清洗,在40℃的真空下干燥,这种纯化合物的熔点为299-300℃。
实施例3
化合物1,3,4,4a,5,6,7,12,12a-九氢-6-甲氧基-2-甲基-2H-吡啶并[3′,4′:4,5]环庚并[Ⅰ,2-b]吲哚的制备:
按照步骤D获得的268mg[1mMole]的SI-WG350化合物溶于200ml甲醇,然后与80mg
(约2mMole)硼氢化钠在室温下,以电磁搅拌器搅拌两小时。将放在旋转蒸发器的一批投料量蒸发成约20ml,与200ml水混合,并用氯仿彻底提抽。将合并的氯仿相用无水硫酸钠干燥,过滤,在真空中浓缩干燥。在硅胶60柱上,用氯仿/甲醇/水(59∶33∶8体积/体积/体积)对产品进行色谱提纯,产率:180mg非晶体物质(甲氧基差向异构体混合物,比率为4∶1)。
Ms(m/e rel.int.in%):284(M+52%),269(100%),252(32%),130(25%),109(25%),96(68%),IR(KBr,cm-1):2920、2843、2782、1452、1337、1988、738,IH-NMR(CDCl3),δppm TMS=0,a*提供的相当低含量的差向异构体的识别信号):1.47-3.17(m,12H),2.25和2.31*(S,3H),3.23*和3.42(S,3H),4.34*和4.51(dd,1H),7.00-7.57(m,4H),8.21和8.42*(br.S.,1H)13c-NMR(CDCl3),δppm TMS=0,主要部分的差向异构体信号为:25.26(t),29.50(t)、33.36(d)、35.24(t)、38.17(d)、46.78(q)、55.47(t)、56.92(q)、62.03(t)、75.23(d)、110.72(d)、112.82(s)、118.45(d)、119.19(d)、121.56(d)、128.69(s)、134.53(s)、135.62(s)。
实施例4:
下列化合物的制备:
1,3,4,7,12,12a-六氢-2-甲基-2H-吡啶并[3′,4′:4,5]-环庚并[Ⅰ,2-b]吲哚-6-酮
(SI-WG359)
1,3,5,7,12,12a-六氢-2-甲基-2H-吡啶并[3′,4′:4,5]-环庚并[Ⅰ,2-b]吲哚-6-酮
(SI-WG360)
1,3,4,5,7,12-六氢-2-甲基-2H-吡啶并[3′,4′:4,5]-环庚并[Ⅰ,2-b]吲哚-6-酮
(SI-WG334a)
如果在实施例1的步骤C中,作为溶剂的不是四氢呋喃,而是相同量的1,4-二恶烷/N,N-二甲基甲酰胺,其比率为2∶1,在其它条件相同的条件下,除了SI-WG334a和SI-WG359异构体之外,会生成数量上明显优势的SI-WG360化合物。所有这三种异构体都可用硅胶60色谱法分离,在二氯甲烷/甲醇的梯度洗脱为93∶7至70∶30的情况下,可顺序地获得SI-WG359、SI-WG360和SI-WG334a。
这些化合物的物料数据,以及按相似方法制备SI-WG398(R2=Br)化合物,归总在表3中。
(表1-表4见文后)
盖仑制剂实例
片剂
1)SI-WG350.HCl 10.00kg
2)微晶纤维素pH102 40.00kg
3)乳糖.1H2O 12.85kg
4)玉米淀粉 16.00kg
5)玉米淀粉 0.50kg
6)硬脂酸镁 0.25kg
80.00kg
将1)、2)、3)、和4)装在捏合机(一种混合成粒装置)中混合20分钟。接着把1015%的5)水溶液加入混合物,再混合30分钟。混合物过筛,干燥并再过筛。此后,获得的颗粒和6)在上述装置中混合30分钟,并接着将混合团块压成片剂,例如直径6mm,重量80mg的片剂。
针剂
1)SI-WG350.HCl 0.100kg
2)柠檬酸-水化物 0.470kg
3)柠檬酸三钠二水化物 0.530kg
4)氯化钠 0.625kg
5)注射水 到1001
在适当的容器中把成分1)、2)、3)和4)溶于5)中。溶液经无菌过滤,将每份为1ml溶液注入小瓶,再进行蒸气-消毒。
不仅对片剂,而且对针剂,都可用通式Ⅰ及通式Ⅴ的化合物来代替1)。
药理研究
现已发现,所说的物质可不同程度地改变循环性能计量值,此处所用的生物试验方法的描述可参见:Staff of the Department of Pharmacology,University of Edinburgh,和L.J.McLeod(1970):Pharmacological Experiment in Intact Preparations,Churchill Livingstone Edinburgh,London and New York,Page 62。
在对6-8只为一组的老鼠以半一酒石酸盐形式进行静脉注射时,可采用本发明的化合物,其用量为10mg kg-1。0.9%氯化钠溶液作为化合物的溶剂。注射0.9%氯化钠溶液作为对照液。在试验的开始前和结束时,抽取血样并测定血内气体浓度。
对麻醉后的老鼠给了本化合物药物后,在两小时内监测血压和心率的变化,决定各种情况下的最大效应,其结果见表5。
可以看出,施用本发明的化合物时,所服用量决定了老鼠的心率和血压下降的程度。
进而还可发现当采用另一种方式给药时,本发明的化合物对其它种类试验动物的作用,特别是SI-WG350-25-在对老鼠和猫的十二指肠用药的情况下,更低的有效剂量为1mg kg-1。
在对心血管有效的服用剂量范围内,权利要求的化合物不会影响其本能的行为和活动。它们也不起止痛作用,因此在对老鼠采用通常的技术进行适当研究时,可以证实这点。
即使对老鼠despinalisation之后,用SI-WG350,以及本发明的其它化合物时仍可导致血压和心率的下降。
采用自发地搏动豚鼠的左右心房其刺激频率为1Hz,这基单独的研究结果,以及上述结果都证实,该权利要求的化合物对心脏具有直接的活动机理,这项试验采用的方法的叙述可参见:Staff of the Department of Pharmacology,University of Einburgh 1(1970):Pharmacological Experi-ments on Isolated Preparation,Churchill Livingston,Edinburgh,London and New York,Page 112。
把体重约500g的动物分成4只一组进行实验,被试验的化合物溶于台罗德氏溶液/氯化钠溶液中,其体积之比为50∶50,将浴液的浓度调节到理想值,按已知方法进行实验,其实验结果见表6。
在对麻醉的老鼠进行通常的研究时,可以证实,本权利要求的物质对组胺释放或胆固醇释放的机理没有相互作用。同样,它们也不会引起β-肾上腺受体-阻碍作用,因此可对肾上腺受体的可能的影响进行研究。
在体重约15kg的雌性小猎兔犬上可以测定对抗作用,被试验的化合物(以半一酒石酸盐形式)溶于台罗德氏液中,芬妥胺作为参照物质(参照对抗物),为了对照起见,台罗德液单独使用,参照对抗物是DL-去甲肾上腺素氢氯化物。
按已知方法制备血液容器部分和进一步进行的试验,根据J.M.Van Rossum(Arch.int.Pharmacodyn.,143(3-4),299-330/1963)和H.O.Schild(Pharmacol.ReV.,9242/1957)的方法进行定量评估和计算。作为实例的结果见下表:
化合物 PA2±S
SI-WG350 6.88±0.73
SI-WG357 6.88±0.27
芬妥胺 7.19±0.68
采用将受体结合/置换研究的方法,加强化合物对α-肾上腺受体-特殊点的刺激,其中,对SI-WG350化合物,将浓度为3.3×10-8M标记的配位体3H-Prazoin替换50%(IC50值)已被确定,(芬妥胺=1.8×10-8M)。没有发现在与3H-Prazion竞争中,对α2一受体有阻碍作用,用相关的配位体的类似试验方法证实试验中不存在对β-受体和钾-和钠-特殊结合点的竞争。(表5、表6见文后)
兼容性
本发明的化合物兼容性很好,在对老鼠采取口服给药时,所测量的毒性为150-225mg/kg,在用静脉注射时,对老鼠的LD50值为24.0-34.0mg/kg。
考虑到所定的LD50值以及治疗患者服量,可见具有广泛疗效。
表5
化合物 剂量 心脏频率的 血压变化范
改变(%) 围压力(%)
SI-WG 350 1 mg/kg i.v. -14.5 -15.8
2 mg/kg i.v. -21.9 -16.5
5 mg/kg i.v. -28.4 -31.5
2 mg/kg i.d. -7.2 -19.2
5 mg/kg i.d. -23.0 -25.7
SI-WG 357 5 mg/kg i.v. -6.1 -11.6
10 mg/kg i.v. -5.5 -22.9
SI-WG 334a 2 mg/kg i.v. -21.2 -17.2
5 mg/kg i.v. -19.6 -25.9
10 mg/kg i.v. -20.8 -30.1
SI-WG 360 2 mg/kg i.v. -10.7 -10.3
5 mg/kg i.v. -14.3 -23.0
10 mg/kg i.v. -22.2 -34.2
SI-WG 331 5 mg/kg i.v. - -
20 mg/kg i.v. -9.7 -18.4
50 mg/kg i.v. -19.3 -29.1
SI-WG 379 5 mg/kg i.v. -17.4 -19.2
10 mg/kg i.v. -23.9 -22.0
SI-WG 399 2 mg/kg i.v. - -
5 mg/kg i.v. -6.6 -
10 mg/kg i.v. -12.1 -
SI-WG 419 2 mg/kg i.v. -7.5 -10.6
5 mg/kg i.v. -12.1 -21.4
10 mg/kg i.v. -22.8 -26.7
SI-WG 449 2 mg/kg i.v. - -16.0
5 mg/kg i.v. -12.0 -10.0
10 mg/kg i.v. -17.0 -22.0
表6
初始的最大影响%
化合物 剂量 左心房 右心房
JPI
SI-WG 350 2.0μg/ml +16 -25
10.0μg/ml +17 -31
20.0μg/ml +23 -47
SI-WG 331 2.0μg/ml +8 -7
10.0μg/ml +14 -12
20.0μg/ml +31 -23
SI-WG 334a 2.0μg/ml +26 -14
10.0μg/ml +25 -29
20.0μg/ml +33 -43
SI-WG 357 2.0μg/ml +17 -9
10.0μg/ml +32 -19
20.0μg/ml +24 -19
SI-WG 360 2.0μg/ml +17 -10
10.0μg/ml +39 -29
20.0μg/ml +50 -41
SI-WG 379 0.5μg/ml +8 -14
2.0μg/ml +24 -35
4.0μg/ml +24 -46
10.0μg/ml +23 -81
SI-WG 399 0.5μg/ml ±5 -22
2.0μg/ml +25 -43
4.0μg/ml +13 -66
10.0μg/ml ±5 -83
SI-WG 419 0.5μg/ml +6 -18
2.0μg/ml +6 -30
4.0μg/ml -7 -42
10.0μg/ml -27 -80
SI-WG 449 2.0μg/ml +16 -19
10.0μg/ml +23 -40
20.0μg/ml +20 -57
+++=实验期满前的收缩调节
Claims (1)
1、一种制备通式(Ⅰ)的吡啶并[3′,4′;4,5]环庚并[1,2b]吲哚化合物的方法,
式中:
R1至R4相同或互异,代表H、卤素、C1-C4烷基、甲氧基、羟基、乙酰氨基、乙酰基、氰基、亚甲二氧基;
R5和R6同为一个氧基,或是其一为H,另一为羟基或C1-C4烷氧基;
R7为H原子;
R8为C1-C4烷基或苄基;
位置4和4a或4a和5或4a和12a之间可以是单键,也可以是双键,并且当4a和12a之间是单键时,其上的氢原子互相为顺式;
附带条件是,上述式(Ⅰ)化合物中,不包括其中R1-R4为H、R5和R6同为一个氧基、R8为CH3、位置5和4a之间为双键、位置4和4a之间与4a和12a之间都是单键所代表的化合物:
该方法包括以下步骤:
A)将通式(Ⅱ)的化合物:
与N,N-二甲基亚甲基铵卤化物反应,得到通式(Ⅲ)的化合物:
其中R1-R4、R7的定义同前述,
B)将通式(Ⅲ)的化合物与通式(Ⅳ)的化合物反应
其中R8的含义同前,得到通式(Ⅴ)的化合物:
C)将通式(Ⅴ)的化合物用一种碱处理,转化为通式(Ⅰ)的化合物,其中R5和R6为氧基,且虚线代表一个双键;还可以进行以下步骤:
D)将通式(Ⅰ)的化合物在惰性溶剂中于催化剂存在下氢化,得到通式(Ⅰ)的化合物,其中,4和5位表示亚甲基,4a和12a位的氢原子相互取向为顺式;或还原为通式(Ⅰ)的化合物,其中R5或R6其中之一为羟基;或将通式(Ⅰ)的化合物烷基化,成为通式(Ⅰ)的化合物,其中R5和R6其中之一为C1-C4-烷氧基;还可以:
E)用一种酸或一种碱处理所得通式(Ⅰ)的化合物,成为药物上可接受的盐。
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