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(20R,23S,24R)-5α-Dinosteran-29-ol | 146276-32-6

中文名称
——
中文别名
——
英文名称
(20R,23S,24R)-5α-Dinosteran-29-ol
英文别名
(2S,3R)-3,4-dimethyl-2-[(2R)-2-[(4R,5S,8S,9S,10S,13R,14S,17R)-4,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]propyl]pentan-1-ol
(20R,23S,24R)-5α-Dinosteran-29-ol化学式
CAS
146276-32-6
化学式
C30H54O
mdl
——
分子量
430.758
InChiKey
ATCBOURKWJHFNM-ZIFSMYQFSA-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:
    481.0±13.0 °C(Predicted)
  • 密度:
    0.935±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    10.4
  • 重原子数:
    31
  • 可旋转键数:
    6
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

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:
    (20R,23S,24R)-5α-Dinosteran-29-ol 在 lithium aluminium tetrahydride 、 三乙胺 作用下, 生成 (20R,23S,24R)-5α-Dinosterane
    参考文献:
    名称:
    5α-地甾烷的C-23和C-24非对映异构体的合成
    摘要:
    制备C 30生物标记物5α-地甾烷(1)的C-23和C-24非对映异构体的立体选择路线涉及(20S)-20-(碘甲基)-4α-甲基-5α-孕烯(7)与3,4-二甲基戊酸甲酯饱和酯(9)结合,然后还原,主要得到赤型-非对映异构体或7,与α,β-不饱和酯3,4-二甲基戊烯酸甲酯烷基化(12)),然后还原,主要得到苏-非对映异构体。
    DOI:
    10.1016/0040-4039(93)88018-e
  • 作为产物:
    描述:
    孕烯醇酮吡啶N-甲基-4-哌啶酮盐酸sodium hydroxide 、 lithium aluminium tetrahydride 、 偶氮二异丁腈 、 n-Bu4SnH 、 双氧水 、 aluminum isopropoxide 、 lithiumpotassium 2-methylbutan-2-olate对甲苯磺酸溶剂黄146三乙胺 、 sodium iodide 、 diborane(6) 作用下, 以 四氢呋喃正己烷二氯甲烷丙酮 为溶剂, 反应 7.0h, 生成 (20R,23S,24R)-5α-Dinosteran-29-ol
    参考文献:
    名称:
    5α-地甾烷的C-23和C-24非对映异构体的合成
    摘要:
    制备C 30生物标记物5α-地甾烷(1)的C-23和C-24非对映异构体的立体选择路线涉及(20S)-20-(碘甲基)-4α-甲基-5α-孕烯(7)与3,4-二甲基戊酸甲酯饱和酯(9)结合,然后还原,主要得到赤型-非对映异构体或7,与α,β-不饱和酯3,4-二甲基戊烯酸甲酯烷基化(12)),然后还原,主要得到苏-非对映异构体。
    DOI:
    10.1016/0040-4039(93)88018-e
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文献信息

  • Synthesis of biological markers in fossil fuels. 7. Selected diastereomers of 4.alpha.-methyl-5.alpha.-stigmastane and 5.alpha.-dinosterane
    作者:Ivan Stoilov、Ewa Kolaczkowska、David S. Watt、Jan St. Pyrek、Robert M. K. Carlson、Frederick J. Fago、J. Michael Moldowan
    DOI:10.1021/jo00064a039
    日期:1993.6
    Efficient routes for the preparation of selected C-23 and C-24 diastereomers of the C30 biological markers 4alpha-methyl-5alpha-stigmastane (1) and 5alpha-dinosterane (2) involved the alkylation of 20-(iodomethyl)-4alpha-methyl-5alpha-pregnane with either saturated or alpha,beta-unsaturated esters. The alkylation of (20S)-20-(iodomethyl)-4alpha-methyl-5alpha-pregnane with methyl (3R)-3-ethyl-4-methylpentanoate furnished methyl (20R,23zeta,24S)-4alpha-methyl-5alpha-stigmastane-23-carboxylate, and a subsequent decarbomethoxylation provided (20R,24R)-l. The alkylation of (20S)-20-(iodomethyl)-4alpha-methyl-5alpha-pregnane with methyl (3S)-3,4-dimethylpentanoate led to methyl (20R,23zeta,24R)-4alpha,24-dimethyl-5alpha-cholestane-23-carboxylate, and the reduction of this mixture provided principally (20R,23S,24R)-5alpha-dinosteran-29-ol. The further reduction of the mesylate of this isomer secured (20R,23S,24R)-5alpha-dinosterane (2a). The application of the same sequence of reactions using methyl (3R)-3,4-dimethylpentanoate led principally to (20R,23R,24S)-5alpha-dinosterane (2d). The alkylation of (20S)-20-(iodomethyl)-4alpha-methyl-5alpha-pregnane with methyl (2zeta)-3,4-dimethyl-2-pentanoate and a subsequent reduction of the ester provided a separable mixture of (20R,23R)- and (20R,23S)-5alpha-dinoster-24-(28)-en-29-ol in a 2.4:1 ratio. The conversion of (20R,23R)-5alpha-dinoster-24(28)-en-29-ol to the corresponding tert-butyldimethylsilyl ether, reduction of the DELTA24(28) bond with hydrogen over platinum oxide, and deprotection gave principally (20R,23R,24R)-5alpha-dinosteran-29-ol. The further reduction of this alcohol provided (20R,23R,24R)-5alpha-dinosterane (2b). The application of the same sequence of reactions to (20R,23S)-5alpha-dinoster-24(28)-en-29-ol provided (20R,23S,24S)-5alpha-dinosterane (2c). Diastereoselectivity at the C-23 position in these ester alkylations was examined as a function of stereochemistry at both the C-20 and C-24 positions.
  • A synthesis of C-23 and C-24 diastereomers of 5α-dinosterane
    作者:Ivan Stoilov、Ewa Kolaczkowska、Jan St. Pyrek、Carolyn P. Brock、David S. Watt、R.M.K. Carlson、J.Michael Moldowan
    DOI:10.1016/0040-4039(93)88018-e
    日期:1992.12
    Stereoselective routes for the preparation of C-23 and C-24 diastereomers of the C30 biological marker, 5α-dinosterane (1), involved the alkylation of (20S)-20-(iodomethyl)-4α-methyl-5α-pregnane (7) with either a saturated ester, methyl 3,4-dimethylpentanoate (9), followed by reduction to give principally the erythro-diastereomers or the alkylation of 7 with an α,β-unsaturated ester, methyl 3,4-dimethylpentenoate
    制备C 30生物标记物5α-地甾烷(1)的C-23和C-24非对映异构体的立体选择路线涉及(20S)-20-(碘甲基)-4α-甲基-5α-孕烯(7)与3,4-二甲基戊酸甲酯饱和酯(9)结合,然后还原,主要得到赤型-非对映异构体或7,与α,β-不饱和酯3,4-二甲基戊烯酸甲酯烷基化(12)),然后还原,主要得到苏-非对映异构体。
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