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demethylcephalotaxinone | 38848-25-8

中文名称
——
中文别名
——
英文名称
demethylcephalotaxinone
英文别名
Desmethyl-cephalotaxinon;3-hydroxy-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),2,13,15(19)-tetraen-4-one
demethylcephalotaxinone化学式
CAS
38848-25-8
化学式
C17H17NO4
mdl
——
分子量
299.326
InChiKey
FDWVASNYLQYPMN-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):
    1.3
  • 重原子数:
    22
  • 可旋转键数:
    0
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.47
  • 拓扑面积:
    59
  • 氢给体数:
    1
  • 氢受体数:
    5

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
    • 1
    • 2
  • 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

  • Stereoselectivity in <i>N</i>-Iminium Ion Cyclization: Development of an Efficient Synthesis of (±)-Cephalotaxine
    作者:Hao Liu、Jing Yu、Xinyu Li、Rui Yan、Ji-Chang Xiao、Ran Hong
    DOI:10.1021/acs.orglett.5b02106
    日期:2015.9.18
    the concise synthesis of (±)-cephalotaxine. The current strategy features a TiCl4-promoted cyclization and ring-closure metathesis to furnish the spiro-ring system. The stereochemical outcome in the N-acyliminium ion cyclization was rationalized by the stereoelectronic effect of the Z- or E-allylsilane. Two diastereomers arising from the cyclization were merged into the formal synthesis of (±)-cephalotaxine
    为简化合成(±)-头孢他辛,开发了利用烯丙基硅烷的立体选择性N-亚胺离子环化反应,以构建邻位的季-叔碳中心。当前的策略以TiCl 4促进的环化和闭环复分解为特征,以提供螺环系统。通过Z-或E-烯丙基硅烷的立体电子效应,可以使N-酰亚胺离子环化中的立体化学结果合理化。由环化产生的两个非对映异构体被合并到(±)-头孢他辛的正式合成中。
  • Two Interrelated Strategies for Cephalotaxine Synthesis
    作者:Xiaodong Lin、Robert W. Kavash、Patrick S. Mariano
    DOI:10.1021/jo961179s
    日期:1996.1.1
    interrelated strategies for the synthesis of members of the cephalotaxus alkaloid family have culminated in a concise route for the preparation of the parent member cephalotaxine (1). As part of efforts exploring the use of an SET-promoted photocyclization reaction of aryl-substituted silylallyliminium salts to generate the spirocyclic DE unit of the target, we noted that attempts to generate the pentacyclic
    对两种相互关联的头孢类生物碱家族成员合成策略的研究最终以简洁的方法制备了亲本头孢他辛(1)。作为探索使用SET促进的芳基取代的甲硅烷基烯丙二胺盐的光环化反应以生成靶标的螺环DE单元的一部分,我们注意到,通过烯醇酯20的脱酰作用生成五环氨基酮23的尝试导致了产生23和大环氨基烯酮24的混合物。显示23和24之间存在快速平衡,有利于后者的开环形式。这与desmethylcephalotaxinone(22)的行为相反,desmethylcephalotaxinone(22)是几种早期头孢他辛合成中的关键晚期中间体,已知以闭环形式存在。
  • Gold(I)-Catalyzed Cyclization–3-Aza-Cope–Mannich Cascade and Its Application to the Synthesis of Cephalotaxine
    作者:Takeo Sakai、Chise Okumura、Masatoshi Futamura、Naotaka Noda、Akari Nagae、Chiharu Kitamoto、Madoka Kamiya、Yuji Mori
    DOI:10.1021/acs.orglett.1c01323
    日期:2021.6.4
    The discovery of a new gold(I)-catalyzed cascade reaction involving cyclization onto a vinylammonium, 3-aza-Cope rearrangement, and Mannich cyclization is reported. A variety of fused nitrogen heterocycles were prepared from simple cyclic tertiary amines using 1–5 mol % of a AuCl(PPh3)/Ag[C5(CN)5] cocatalyst system. The developed reaction was used in a study aimed at synthesizing cephalotaxine. A five-step
    据报道,发现了一种新的金 (I) 催化级联反应,包括环化到乙烯基铵、3-氮杂-科普重排和曼尼希环化。使用 1–5 mol% 的 AuCl(PPh 3 )/Ag[C 5 (CN) 5 ] 助催化剂体系,从简单的环状叔胺制备了多种稠氮杂环。开发的反应用于旨在合成头孢噻肟的研究中。来自去甲肼苯哒嗪的五步操作以 39.1% 的总收率提供了去甲基头孢噻吩,其分两步转化为 (-)-头孢噻肟。
  • A Novel and Efficient Total Synthesis of Cephalotaxine
    作者:Wei-Dong Z. Li、Yong-Qiang Wang
    DOI:10.1021/ol035098b
    日期:2003.8.1
    [reaction: see text] Total synthesis of cephalotaxine (CET), the parent member of a class of structurally unique antileukemia Cephalotaxus alkaloids, was accomplished on the basis of a conceptually novel strategy featuring transannular reductive skeletal rearrangements as the key transformations for the construction of the pentacyclic ring skeleton of CET. The synthetic potential of the designated
    [反应:见正文]在一种概念上新颖的策略基础上,完成了头孢他辛(CET)的全合成,头孢他辛是一类结构独特的头孢类生物碱的母体,该策略以跨环的还原性骨架重排为构建环戊二烯的关键转变。 CET的五环骨架。指定的Clemmensen-Clemo-Prelog-Leonard还原性重排的合成潜力首次在CET苯并enza庚因亚基的简便合成中得到了证明。发现了一种新型的环内烯胺(环戊烯酮)环化,并将其合理化为一种不寻常的偶氮-纳扎罗夫型环化反应。
  • Total synthesis of the Cephalotaxus alkaloids. Cephalotaxine, cephalotaxinone, and demethylcephalotaxinone
    作者:Steven M. Weinreb、Joseph Auerbach
    DOI:10.1021/ja00842a030
    日期:1975.4
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同类化合物

高三尖杉酯碱酰胺 高三尖杉酯碱 氧桥三尖杉碱 异三尖杉酯碱 双(去甲基)-脱氧三尖杉酯碱 去甲基三尖杉酮碱 去氧哈林通碱 乙酰三尖杉碱 三尖杉酯碱 三尖杉碱 4-羟基三尖杉碱 4'-去甲基高三尖杉酯碱 (1S,3aR)-1,5,6,8,9,14bbeta-六氢-2-甲氧基-4H-环戊并[a][1,3]二氧杂环戊并[4,5-H]吡咯并[2,1-b][3]苯并氮杂卓-1alpha,9alpha-二醇 (-)-脱水三尖杉酯碱 nordeoxyharringtonine cephalotaxine 4′-demethylharringtonine homoharringtonine α-N-oxide cephalotaxine α-N-oxide cephalotaxine α-N-oxide cephalotaxine β-N-oxide (2R,3R,4S,5S)-2,3-bis(tert-butyldiphenylsilyloxy)-cephalotaxan-8-one (2S,3R,5S,7S)-3-methyl-4,17,19-trioxa-11-azahexacyclo[12.7.0.02,7.03,5.07,11.016,20]henicosa-1(21),14,16(20)-triene (2S,6S)-3-methyl-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),3,13,15(19)-tetraene (1S)-2-methoxy-(3atC4,14bt)-1,5,6,8,9,14b-hexahydro-4H-1r,9c-epioxido-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepine 1-O-[(2R,3S,6R)-4-methoxy-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),4,13,15(19)-tetraen-3-yl] 4-O-methyl 2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate 2,3,5,6,8,9-hexahydro-1-(pivaloyloxy)-4H-cyclopenta<1,3>dioxolo<4,5-h>pyrrolo<2,1-b><3>benzazepine Dimethyl 3-(trifluoromethylsulfonyloxy)-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),2,7,13,15(19)-pentaene-7,8-dicarboxylate Alkaloid D Epicephalotaxin Cephalotaxin a u. b (3aα,4aS*,15bβ,15cα)-(+/-)-3a,4,6,7,9,10,15b,15c-octahydro-2,2-dimethyl-5H-<1,3>dioxolo<4,5-h>-1,3-dioxolo<4,5>cyclopenta<1,2-a>pyrrolo<2,1-b><3>-benzazepine 4-Hydroxy-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),13,15(19)-trien-3-one (Ξ)-2-methyl-2-(2,2,2-trichloro-ethoxycarbonyloxy)-butyric acid (3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl ester (3aR)-2-methoxy-1t-(2,2,2-trichloro-ethoxycarbonyloxy)-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepine (S)-phenyl-(2,2,2-trichloro-ethoxycarbonyloxy)-acetic acid (3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl ester oxalic acid ethyl ester (3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl ester (3aR)-1t-benzyloxycarbonyloxy-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepine (S)-hydroxy-phenyl-acetic acid (3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl ester [(2S,3S,6R)-4-methoxy-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),4,13,15(19)-tetraen-3-yl] (2R)-2-[2-(furan-2-ylmethylamino)-2-oxoethyl]-2,6-dihydroxy-6-methylheptanoate (+/-)-3-dehydroxy-2-demethoxy-1,2-dihydro-2,8-dioxocephalotaxine epi-deoxyharringtonine hexa-2t,4t-dienoic acid (3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl ester Dehydrodeoxyhomoharringtonine [(2S,4S,6S)-12-methylsulfanyl-11-oxo-16,18-dioxa-10-azapentacyclo[11.7.0.02,6.06,10.015,19]icosa-1(20),13,15(19)-trien-4-yl] acetate Omacetaxine mepesuccinate hydrochloride cephalotaxinamide (1R,2S,3aS,14bR)-1,2,3,5,6,8,9,14b-Octahydro-4H-cyclopenta<1,3>dioxolo<4,5-h>pyrrolo<2,1-b><3>benzazepine-1,2-diol methylfumaric acid 1-((3aR)-2-methoxy-(3arC4,14bc)-1,5,6,8,9,14b-hexahydro-4H-cyclopenta[b][1,3]dioxolo[4',5':4,5]benzo[1,2-d]pyrrolo[1,2-a]azepin-1t-yl) ester 4-methyl ester 11alpha-Hydroxycephalotaxine