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6-amino-3-(N-n-propyl-N-propionylamino)-3,4-dihydro-2H-[1]benzopyran | 136906-13-3

中文名称
——
中文别名
——
英文名称
6-amino-3-(N-n-propyl-N-propionylamino)-3,4-dihydro-2H-[1]benzopyran
英文别名
6-amino-3-(N-propionyl-N-n-propylamino)chroman;N-(6-amino-3,4-dihydro-2H-chromen-3-yl)-N-propylpropanamide
6-amino-3-(N-n-propyl-N-propionylamino)-3,4-dihydro-2H-[1]benzopyran化学式
CAS
136906-13-3
化学式
C15H22N2O2
mdl
——
分子量
262.352
InChiKey
KLXCPGCRHJUXGO-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):
    2.2
  • 重原子数:
    19
  • 可旋转键数:
    4
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.53
  • 拓扑面积:
    55.6
  • 氢给体数:
    1
  • 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

  • 作为反应物:
    描述:
    6-amino-3-(N-n-propyl-N-propionylamino)-3,4-dihydro-2H-[1]benzopyransodium hydroxide 、 LiAlH4 作用下, 以 乙醚 为溶剂, 以216 mg (85%)的产率得到6-amino-3-(N,N-di-n-propylamino)-3,4-dihydro-2H-[1]benzopyran
    参考文献:
    名称:
    Centrally acting 6,7,8,9-tetrahydro-3H-benz(e)indole heterocyclics
    摘要:
    Formula I的化合物或Formula I的药学上可接受的盐,其中R.sup.1为H,C.sub.1-C.sub.3烷基,--(CH.sub.2).sub.n CONH.sub.2,其中n为2至6,(CH2).sub.n-1-(4,4-二甲基哌啶-2,6-二酮基),或环丙甲基;R.sup.2为氢,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基或与R.sup.1结合形成C.sub.3-C.sub.8环烷基,C.sub.2-C.sub.8烯基,C.sub.2-C.sub.8炔基,(CH.sub.2).sub.n--R"--Ar,其中R"为O,S或NH,3,3,3-三氟丙基,--(CH.sub.2).sub.m--R.sup.9,其中m为2或3,R.sup.9为苯基、2-噻吩基或3-噻吩基;R.sup.3为氢,C.sub.1-C.sub.3烷基,2,2,2-三氟乙基,3,3,3-三氟丙基,甲酰基,CN,卤素,CH.sub.2OR.sup.2,C(O)C(O)OR.sup.1,C(O)CO NR.sup.1 R.sup.2,--(CH.sub.2).sub.q--NR.sup.1 R.sup.2,其中q为0至5,C.dbd.NOR.sup.2,2(4,5-二氢)噁唑基,或COR.sup.10,其中R.sup.10为H,R.sup.1,NR.sup.1 R.sup.2或CF.sub.3;R.sup.4为氢,C.sub.1-C.sub.3烷基,环丙甲基,CF.sub.3,2,2,2-三氟乙基,CN,CONR.sup.1 R.sup.2,.dbd.O,2(4,5-二氢)咪唑基,2(4,5-二氢)噁唑基,2-噁唑基,3-噁二唑基,或3,3,3-三氟丙基;R.sup.5为氢,R.sup.1,OCH.sub.3,C(O)CH.sub.3或C(O)OR.sup.1;X为(a)一个价键,(b)CH.sub.2,或(c)O,S或NR.sup.5,其中R.sup.5为H,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基,苄基,COR.sup.6,其中R.sup.6为C.sub.1-C.sub.3烷基,苯基,或CONR.sup.7 R.sup.8,其中R.sup.7和R.sup.8独立地为H或C.sub.1-C.sub.3烷基;Z为氢或卤素;但当X为CH.sub.2时,R.sub.3和R.sub.4中至少有一个不是氢或C.sub.1-C.sub.3烷基。Formula I的化合物适用于治疗中枢神经系统疾病,特别是作为5-HT.sub.1A受体激动剂。
    公开号:
    US05288748A1
  • 作为产物:
    参考文献:
    名称:
    Centrally acting 6,7,8,9-tetrahydro-3H-benz(e)indole heterocyclics
    摘要:
    Formula I的化合物或Formula I的药学上可接受的盐,其中R.sup.1为H,C.sub.1-C.sub.3烷基,--(CH.sub.2).sub.n CONH.sub.2,其中n为2至6,(CH2).sub.n-1-(4,4-二甲基哌啶-2,6-二酮基),或环丙甲基;R.sup.2为氢,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基或与R.sup.1结合形成C.sub.3-C.sub.8环烷基,C.sub.2-C.sub.8烯基,C.sub.2-C.sub.8炔基,(CH.sub.2).sub.n--R"--Ar,其中R"为O,S或NH,3,3,3-三氟丙基,--(CH.sub.2).sub.m--R.sup.9,其中m为2或3,R.sup.9为苯基、2-噻吩基或3-噻吩基;R.sup.3为氢,C.sub.1-C.sub.3烷基,2,2,2-三氟乙基,3,3,3-三氟丙基,甲酰基,CN,卤素,CH.sub.2OR.sup.2,C(O)C(O)OR.sup.1,C(O)CO NR.sup.1 R.sup.2,--(CH.sub.2).sub.q--NR.sup.1 R.sup.2,其中q为0至5,C.dbd.NOR.sup.2,2(4,5-二氢)噁唑基,或COR.sup.10,其中R.sup.10为H,R.sup.1,NR.sup.1 R.sup.2或CF.sub.3;R.sup.4为氢,C.sub.1-C.sub.3烷基,环丙甲基,CF.sub.3,2,2,2-三氟乙基,CN,CONR.sup.1 R.sup.2,.dbd.O,2(4,5-二氢)咪唑基,2(4,5-二氢)噁唑基,2-噁唑基,3-噁二唑基,或3,3,3-三氟丙基;R.sup.5为氢,R.sup.1,OCH.sub.3,C(O)CH.sub.3或C(O)OR.sup.1;X为(a)一个价键,(b)CH.sub.2,或(c)O,S或NR.sup.5,其中R.sup.5为H,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基,苄基,COR.sup.6,其中R.sup.6为C.sub.1-C.sub.3烷基,苯基,或CONR.sup.7 R.sup.8,其中R.sup.7和R.sup.8独立地为H或C.sub.1-C.sub.3烷基;Z为氢或卤素;但当X为CH.sub.2时,R.sub.3和R.sub.4中至少有一个不是氢或C.sub.1-C.sub.3烷基。Formula I的化合物适用于治疗中枢神经系统疾病,特别是作为5-HT.sub.1A受体激动剂。
    公开号:
    US05288748A1
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文献信息

  • Centrally acting 6,7,8,9-tetrahydro-3H-benz(E)indole heterocyclics
    申请人:——
    公开号:US05461061A1
    公开(公告)日:1995-10-24
    A compound of Formula I ##STR1## or pharmaceutically acceptable salts of Formula I, where R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, --(CH.sub.2).sub.n CONH.sub.2 where n is 2 to 6, (CH2).sub.n -1-(4,4-dimethylpiperidine-2,6-dione-yl), or cyclopropylmethyl; R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl or combined with R.sup.1 to form a C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 akynyl, (CH.sub.2).sub.n --X--Ar where X is O, S, or NH, 3,3,3-trifluoropropyl, --(CH.sub.2).sub.m --R.sup.9 where m is 2 or 3 and R.sup.9 is phenyl, 2-thiophenyl or 3-thiophenyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.3 alkyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, formyl, CN, halogen, CH.sub.2 OR.sup.2, C(O)C(O)OR.sup.1, C(O)CO NR.sup.1 R.sup.2, --(CH.sub.2).sub.q --NR.sup.1 R.sup.2 where q is 0 to 5, C.dbd.NOR.sup.2, 2(4,5-dihydro)oxazolyl, or COR.sup.10 where R.sup.10 is H, R.sup.1, NR.sup.1 R.sup.2 or CF.sub.3 ; R.sup.4 is hydrogen, C.sub.1 -C.sub.3 alkyl, cyclopropylmethyl, CF.sub.3, 2,2,2-trifluoroethyl, CN, CONR.sup.1 R.sup.2, .dbd.O, 2(4,5-dihydro)imidazolyl, 2(4,5-dihydro)oxazolyl, 2-oxazolyl, 3-oxadiazolyl, or 3,3,3-trifluoropropyl; R.sup.5 is hydrogen, R.sup. 1, OCH.sub.3, C(O)CH.sub.3 or C(O)OR.sup.1 ; X is (a) a valence bond, (b) CH.sub.2, or (c) O, S or NR.sup.5 where R.sup.5 is H, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, benzyl, COR.sup.6 where R.sup.6 is a C.sub.1 -C.sub.3 alkyl, phenyl, or CONR.sup.7 R.sup.8 where R.sup.7 and R.sup.8 are independently H or C.sub.1 -C.sub.3 alkyl; and Z is a hydrogen or halogen; provided that when X is CH.sub.2, at least one of R.sub.3 and R.sub.4 is other than hydrogen or C.sub.1 -C.sub.3 alkyl. The compounds of Formula I are suitable for treating disorders of the central nervous system, particularly as 5-HT.sub.1A receptor agonists.
    公式I的化合物##STR1##或公式I的药用盐,其中R.sup.1为H、C.sub.1 -C.sub.3烷基、--(CH.sub.2).sub.n CONH.sub.2,其中n为2至6,(CH2).sub.n-1-(4,4-二甲基哌啶-2,6-二酮基)或环丙基甲基;R.sup.2为氢、C.sub.1 -C.sub.8烷基、C.sub.3 -C.sub.8环烷基或与R.sup.1结合形成C.sub.3 -C.sub.8环烷基、C.sub.2 -C.sub.8烯基、C.sub.2 -C.sub.8炔基、(CH.sub.2).sub.n--X--Ar,其中X为O、S或NH、3,3,3-三氟丙基、--(CH.sub.2).sub.m--R.sup.9,其中m为2或3,R.sup.9为苯基、2-噻吩基或3-噻吩基;R.sup.3为氢、C.sub.1 -C.sub.3烷基、2,2,2-三氟乙基、3,3,3-三氟丙基、甲酰基、CN、卤素、CH.sub.2 OR.sup.2、C(O)C(O)OR.sup.1、C(O)CO NR.sup.1 R.sup.2、--(CH.sub.2).sub.q--NR.sup.1 R.sup.2,其中q为0至5、C.dbd.NOR.sup.2、2(4,5-二氢)噁唑基或COR.sup.10,其中R.sup.10为H、R.sup.1、NR.sup.1 R.sup.2或CF.sub.3;R.sup.4为氢、C.sub.1 -C.sub.3烷基、环丙基甲基、CF.sub.3、2,2,2-三氟乙基、CN、CONR.sup.1 R.sup.2、.dbd.O、2(4,5-二氢)咪唑基、2(4,5-二氢)噁唑基、2-噁唑基、3-噁二唑基或3,3,3-三氟丙基;R.sup.5为氢、R.sup. 1、OCH.sub.3、C(O)CH.sub.3或C(O)OR.sup.1;X为(a)一个价键、(b)CH.sub.2或(c)O、S或NR.sup.5,其中R.sup.5为H、C.sub.1 -C.sub.8烷基、C.sub.3 -C.sub.8环烷基、苄基、COR.sup.6,其中R.sup.6为C.sub.1 -C.sub.3烷基、苯基或CONR.sup.7 R.sup.8,其中R.sup.7和R.sup.8独立地为H或C.sub.1 -C.sub.3烷基;Z为氢或卤素;但当X为CH.sub.2时,R.sub.3和R.sub.4中至少一个不是氢或C.sub.1 -C.sub.3烷基。公式I的化合物适用于治疗中枢神经系统疾病,特别是作为5-HT.sub.1A受体激动剂。
  • Centrally acting 6,7,8,9-tetrahydro-3H-benz(e)indole heterocyclics
    申请人:The Upjohn Company
    公开号:US05288748A1
    公开(公告)日:1994-02-22
    A compound of Formula I ##STR1## or pharmaceutically acceptable salts of Formula I, where R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, --(CH.sub.2).sub.n CONH.sub.2 where n is 2 to 6, (CH2).sub.n -1-(4,4-dimethylpiperidine-2,6-dione-yl), or cyclopropylmethyl; R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl or combined with R.sup.1 to form a C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 akynyl, (CH.sub.2).sub.n --R"--Ar where R" is O, S, or NH, 3,3,3-trifluoropropyl, --(CH.sub.2).sub.m --R.sup.9 where m is 2 or 3 and R.sup.9 is phenyl, 2-thienyl or 3-thienyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.3 alkyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, formyl, CN, halogen, CH.sub.2 OR.sup.2, C(O)C(O)OR.sup.1, C(O)CO NR.sup.1 R.sup.2, --(CH.sub.2).sub.q --NR.sup.1 R.sup.2 where q is 0 to 5, C.dbd.NOR.sup.2, 2(4,5-dihydro)oxazolyl, or COR.sup.10 where R.sup.10 is H, R.sup.1, NR.sup.1 R.sup.2 or CF.sub.3 ; R.sup.4 is hydrogen, C.sub.1 -C.sub.3 alkyl, cyclopropylmethyl, CF.sub.3, 2,2,2-trifluoroethyl, CN, CONR.sup.1 R.sup.2, .dbd.O, 2(4,5-dihydro)imidazolyl, 2(4,5-dihydro)oxazolyl, 2-oxazolyl, 3-oxadiazolyl, or 3,3,3-trifluoropropyl; R.sup.5 is hydrogen, R.sup.1, OCH.sub.3, C(O)CH.sub.3 or C(O)OR.sup.1 ; X is (a) a valence bond, (b) CH.sub.2, or (c) O, S or NR.sup.5 where R.sup.5 is H, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, benzyl, COR.sup.6 where R.sup.6 is a C.sub.1 -C.sub.3 alkyl, phenyl, or CONR.sup.7 R.sup.8 where R.sup.7 and R.sup.8 are independently H or C.sub.1 -C.sub.3 alkyl; and Z is a hydrogen or halogen; provided that when X is CH.sub.2, at least one of R.sub.3 and R.sub.4 is other than hydrogen or C.sub.1 -C.sub.3 alkyl. The compounds of Formula I are suitable for treating disorders of the central nervous system, particularly as 5-HT.sub.1A receptor agonists.
    Formula I的化合物或Formula I的药学上可接受的盐,其中R.sup.1为H,C.sub.1-C.sub.3烷基,--(CH.sub.2).sub.n CONH.sub.2,其中n为2至6,(CH2).sub.n-1-(4,4-二甲基哌啶-2,6-二酮基),或环丙甲基;R.sup.2为氢,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基或与R.sup.1结合形成C.sub.3-C.sub.8环烷基,C.sub.2-C.sub.8烯基,C.sub.2-C.sub.8炔基,(CH.sub.2).sub.n--R"--Ar,其中R"为O,S或NH,3,3,3-三氟丙基,--(CH.sub.2).sub.m--R.sup.9,其中m为2或3,R.sup.9为苯基、2-噻吩基或3-噻吩基;R.sup.3为氢,C.sub.1-C.sub.3烷基,2,2,2-三氟乙基,3,3,3-三氟丙基,甲酰基,CN,卤素,CH.sub.2OR.sup.2,C(O)C(O)OR.sup.1,C(O)CO NR.sup.1 R.sup.2,--(CH.sub.2).sub.q--NR.sup.1 R.sup.2,其中q为0至5,C.dbd.NOR.sup.2,2(4,5-二氢)噁唑基,或COR.sup.10,其中R.sup.10为H,R.sup.1,NR.sup.1 R.sup.2或CF.sub.3;R.sup.4为氢,C.sub.1-C.sub.3烷基,环丙甲基,CF.sub.3,2,2,2-三氟乙基,CN,CONR.sup.1 R.sup.2,.dbd.O,2(4,5-二氢)咪唑基,2(4,5-二氢)噁唑基,2-噁唑基,3-噁二唑基,或3,3,3-三氟丙基;R.sup.5为氢,R.sup.1,OCH.sub.3,C(O)CH.sub.3或C(O)OR.sup.1;X为(a)一个价键,(b)CH.sub.2,或(c)O,S或NR.sup.5,其中R.sup.5为H,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基,苄基,COR.sup.6,其中R.sup.6为C.sub.1-C.sub.3烷基,苯基,或CONR.sup.7 R.sup.8,其中R.sup.7和R.sup.8独立地为H或C.sub.1-C.sub.3烷基;Z为氢或卤素;但当X为CH.sub.2时,R.sub.3和R.sub.4中至少有一个不是氢或C.sub.1-C.sub.3烷基。Formula I的化合物适用于治疗中枢神经系统疾病,特别是作为5-HT.sub.1A受体激动剂。
  • Centrally acting 6,7,8,9-tetrahydro-3H-benz(e) indole heterocyclics
    申请人:The Upjohn Company
    公开号:US05650427A1
    公开(公告)日:1997-07-22
    A compound of Formula I ##STR1## or pharmaceutically acceptable salts of Formula I, where R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, --(CH.sub.2).sub.n CONH.sub.2 where n is 2 to 6, (CH2).sub.n -1-(4,4-dimethylpiperidine-2,6-dione-yl), or cyclopropylmethyl; R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl or combined with R.sup.1 to form a C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 akynyl, (CH.sub.2).sub.n --X--Ar where X is O, S, or NH, 3,3,3-trifluoropropyl, --(CH.sub.2).sub.m --R.sup.9 where m is 2 or 3 and R.sup.9 is phenyl, 2-thiophenyl or 3-thiophenyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.3 alkyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, formyl, CN, halogen, CH.sub.2 OR.sup.2, C(O)C(O)OR.sup.1, C(O)CO NR.sup.1 R.sup.2, --(CH.sub.2).sub.q --NR.sup.1 R.sup.2 where q is 0 to 5, C.dbd.NOR.sup.2, 2(4,5-dihydro)oxazolyl, or COR.sup.10 where R.sup.10 is H, R.sup.1, NR.sup.1 R.sup.2 or CF.sub.3 ; R.sup.4 is hydrogen, C.sub.1 -C.sub.3 alkyl, cyclopropylmethyl, CF.sub.3, 2,2,2-trifluoroethyl, CN, CONR.sup.1 R.sup.2, .dbd.O, 2(4,5-dihydro)imidazolyl, 2(4,5-dihydro)oxazolyl, 2-oxazolyl, 3-oxadiazolyl, or 3,3,3-trifluoropropyl; R.sup.5 is hydrogen, R.sup.1, OCH.sub.3, C(O)CH.sub.3 or C(O)OR.sup.1 ; X is (a) a valence bond, (b) CH.sub.2, or (c) O, S or NR.sup.5 where R.sup.5 is H, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, benzyl, COR.sup.6 where R.sup.6 is a C.sub.1 -C.sub.3 alkyl, phenyl, or CONR.sup.7 R.sup.8 where R.sup.7 and R.sup.8 are independently H or C.sub.1 -C.sub.3 alkyl; and Z is a hydrogen or halogen; provided that when X is CH.sub.2, at least one of R.sub.3 and R.sub.4 is other than hydrogen or C.sub.1 -C.sub.3 alkyl. The compounds of Formula I are suitable for treating disorders of the central nervous system, particularly as 5-HT.sub.1A receptor agonists.
    一种化合物I的公式 ##STR1## 或公式I的药学上可接受的盐,其中R.sup.1是H,C.sub.1-C.sub.3烷基,--(CH.sub.2).sub.n CONH.sub.2,其中n为2到6,(CH2).sub.n-1-(4,4-二甲基哌啶-2,6-二酮基),或环丙基甲基;R.sup.2是氢,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基或与R.sup.1结合形成C.sub.3-C.sub.8环烷基,C.sub.2-C.sub.8烯基,C.sub.2-C.sub.8炔基,(CH.sub.2).sub.n --X--Ar,其中X为O,S或NH,3,3,3-三氟丙基,--(CH.sub.2).sub.m --R.sup.9,其中m为2或3,R.sup.9为苯基,2-噻吩基或3-噻吩基;R.sup.3是氢,C.sub.1-C.sub.3烷基,2,2,2-三氟乙基,3,3,3-三氟丙基,甲酰基,CN,卤素,CH.sub.2 OR.sup.2,C(O)C(O)OR.sup.1,C(O)CO NR.sup.1 R.sup.2,--(CH.sub.2).sub.q --NR.sup.1 R.sup.2,其中q为0到5,C.dbd.NOR.sup.2,2(4,5-二氢)噁唑基,或COR.sup.10,其中R.sup.10是H,R.sup.1,NR.sup.1 R.sup.2或CF.sub.3;R.sup.4是氢,C.sub.1-C.sub.3烷基,环丙基甲基,CF.sub.3,2,2,2-三氟乙基,CN,CONR.sup.1 R.sup.2,.dbd.O,2(4,5-二氢)咪唑基,2(4,5-二氢)噁唑基,2-噁唑基,3-噁二唑基或3,3,3-三氟丙基;R.sup.5是氢,R.sup.1,OCH.sub.3,C(O)CH.sub.3或C(O)OR.sup.1;X是(a)一个价键,(b)CH.sub.2,或(c)O,S或NR.sup.5,其中R.sup.5是H,C.sub.1-C.sub.8烷基,C.sub.3-C.sub.8环烷基,苄基,COR.sup.6,其中R.sup.6是C.sub.1-C.sub.3烷基,苯基或CONR.sup.7 R.sup.8,其中R.sup.7和R.sup.8独立地为H或C.sub.1-C.sub.3烷基;Z是氢或卤素;但是当X为CH.sub.2时,R.sub.3和R.sub.4中至少有一个不是氢或C.sub.1-C.sub.3烷基。公式I的化合物适用于治疗中枢神经系统的疾病,尤其是作为5-HT.sub.1A受体激动剂。
  • NEW CENTRALLY ACTING 6,7,8,9-TETRAHYDRO-3H-BENZ(e)INDOLE HETEROCYCLICS
    申请人:THE UPJOHN COMPANY
    公开号:EP0510068A1
    公开(公告)日:1992-10-28
  • US5288748A
    申请人:——
    公开号:US5288748A
    公开(公告)日:1994-02-22
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