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6-deoxo-3-dehydroteasterone | 164034-48-4

中文名称
——
中文别名
——
英文名称
6-deoxo-3-dehydroteasterone
英文别名
3-Dehydro-6-deoxoteasterone;(5S,8R,9S,10S,13S,14S,17R)-17-[(2S,3R,4R,5S)-3,4-dihydroxy-5,6-dimethylheptan-2-yl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
6-deoxo-3-dehydroteasterone化学式
CAS
164034-48-4
化学式
C28H48O3
mdl
——
分子量
432.687
InChiKey
URNVSZVQLKHKDE-WAFXAADMSA-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

  • 沸点:
    549.6±20.0 °C(Predicted)
  • 密度:
    1.034±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    6.9
  • 重原子数:
    31
  • 可旋转键数:
    5
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.96
  • 拓扑面积:
    57.5
  • 氢给体数:
    2
  • 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

  • C-23 Hydroxylation by<i>Arabidopsis</i>CYP90C1 and CYP90D1 Reveals a Novel Shortcut in Brassinosteroid Biosynthesis
    作者:Toshiyuki Ohnishi、Anna-Maria Szatmari、Bunta Watanabe、Satomi Fujita、Simona Bancos、Csaba Koncz、Marcel Lafos、Kyomi Shibata、Takao Yokota、Kanzo Sakata、Miklos Szekeres、Masaharu Mizutani
    DOI:10.1105/tpc.106.045443
    日期:2006.12.14
    Abstract

    Brassinosteroids (BRs) are biosynthesized from campesterol via several cytochrome P450 (P450)–catalyzed oxidative reactions. We report the functional characterization of two BR-biosynthetic P450s from Arabidopsis thaliana: CYP90C1/ROTUNDIFOLIA3 and CYP90D1. The cyp90c1 cyp90d1 double mutant exhibits the characteristic BR-deficient dwarf phenotype, although the individual mutants do not display this phenotype. These data suggest redundant roles for these P450s. In vitro biochemical assays using insect cell-expressed proteins revealed that both CYP90C1 and CYP90D1 catalyze C-23 hydroxylation of various 22-hydroxylated BRs with markedly different catalytic efficiencies. Both enzymes preferentially convert 3-epi-6-deoxocathasterone, (22S,24R)-22-hydroxy-5α-ergostan-3-one, and (22S,24R)-22-hydroxyergost-4-en-3-one to 23-hydroxylated products, whereas they are less active on 6-deoxocathasterone. Likewise, cyp90c1 cyp90d1 plants were deficient in 23-hydroxylated BRs, and in feeding experiments using exogenously supplied intermediates, only 23-hydroxylated BRs rescued the growth deficiency of the cyp90c1 cyp90d1 mutant. Thus, CYP90C1 and CYP90D1 are redundant BR C-23 hydroxylases. Moreover, their preferential substrates are present in the endogenous Arabidopsis BR pool. Based on these results, we propose C-23 hydroxylation shortcuts that bypass campestanol, 6-deoxocathasterone, and 6-deoxoteasterone and lead directly from (22S,24R)-22-hydroxy-5α-ergostan-3-one and 3-epi-6-deoxocathasterone to 3-dehydro-6-deoxoteasterone and 6-deoxotyphasterol.

    摘要

    植物雄甾体(BRs)是通过几个细胞色素P450(P450)催化的氧化反应从肉豆蔻甾醇合成的。我们报道了来自拟南芥的两个BR生物合成P450的功能特征:CYP90C1 / ROTUNDIFOLIA3和CYP90D1。cyp90c1 cyp90d1双突变体表现出特征性的BR缺陷侏儒表型,尽管单个突变体不显示此表型。这些数据表明这些P450具有冗余作用。使用昆虫细胞表达的蛋白质进行体外生化分析表明,CYP90C1和CYP90D1均催化各种22-羟基BR的C-23羟化,具有明显不同的催化效率。两种酶优先将3-epi-6-deoxocathasterone,(22S,24R)-22-羟基-5α-ergostan-3-one和(22S,24R)-22-羟基ergost-4-en-3-one转化为23-羟基产物,而它们对6-deoxocathasterone的活性较低。同样,cyp90c1 cyp90d1植物缺乏23-羟基BR,在使用外源中间体进行喂养实验时,只有23-羟基BR才能挽救cyp90c1 cyp90d1突变体的生长缺陷。因此,CYP90C1和CYP90D1是冗余的BR C-23羟化酶。此外,它们的优先底物存在于内源的拟南芥BR池中。基于这些结果,我们提出C-23羟化捷径,可以绕过肉豆蔻醇,6-deoxocathasterone和6-deoxoteasterone,直接从(22S,24R)-22-羟基-5α-ergostan-3-one和3-epi-6-deoxocathasterone到3-dehydro-6-deoxoteasterone和6-deoxotyphasterol。

  • Takatsuto, Suguru; Watanabe, Tsuyoshi; Fujioka, Shozo, Journal of Chemical Research, Miniprint, 1997, # 4, p. 901 - 924
    作者:Takatsuto, Suguru、Watanabe, Tsuyoshi、Fujioka, Shozo、Sakurai, Akira
    DOI:——
    日期:——
  • An alternative brassinolide biosynthetic pathway via late C-6 oxidation
    作者:Choi Yong-Hwa、Shozo Fujioka、Takahito Nomura、Atsushi Harada、Takao Yokota、Suguru Takatsuto、Akira Sakurai
    DOI:10.1016/s0031-9422(96)00572-9
    日期:1997.2
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