3β-chloro-cholestadiene-(5.7) | 40228-70-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 3β-chloro-cholestadiene-(5.7)
• 英文别名: 3β-Chlor-cholestadien-(5.7)；(9S,10R,13R,14R,17R)-3-chloro-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene
• CAS: 40228-70-4
• 化学式: C₂₇H₄₃Cl
• 分子量: 403.091
• InChiKey: NLGCNBZQIJLUMR-CQDIBIRLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.2
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  3β-chlorocholest-5-en-7-ol 在 三溴化磷 、 甲苯 、 苯 作用下， 生成 3β-chloro-cholestadiene-(5.7)
  参考文献：
  名称：

  7-脱氢胆固醇酰氯和溴化物。

  摘要：

  DOI：

  10.1021/jo01164a009

文献信息

• Ramachandran plot on the web
  作者：S.S. Sheik、P. Sundararajan、A.S.Z. Hussain、K. Sekar

  DOI：10.1093/bioinformatics/18.11.1548

  日期：2002.11.1

  Summary: A graphics package has been developed to display the main chain torsion angles phi, psi (φ, Ψ); (Ramachandran angles) in a protein of known structure. In addition, the package calculates the Ramachandran angles at the central residue in the stretch of three amino acids having specified the flanking residue types. The package displays the Ramachandran angles along with a detailed analysis output. This software is incorporated with all the protein structures available in the Protein Databank.

  Availability: This package is available over the world wide web at http://144.16.71.146/rp/ or http://dicsoft1.physics.iisc.ernet.in/rp.

  Contact: [e-mail]

  * To whom correspondence should be addressed.

  † This work is dedicated to Late Professor G. N. Ramachandran.

  摘要：已开发了一个图形软件包，用于显示已知结构蛋白质中的主链扭转角 phi, psi (φ, Ψ)（Ramachandran角度）。此外，该软件包计算了在具有指定侧链残基类型的三个氨基酸延伸中心残基处的Ramachandran角度。该软件包显示Ramachandran角度以及详细的分析输出。该软件已与蛋白质数据库中所有可用的蛋白质结构整合。 可用性：该软件包可通过全球网络访问，网址为 http://144.16.71.146/rp/ 或 http://dicsoft1.physics.iisc.ernet.in/rp。 联系方式：[e-mail] * 请将信函寄至。 † 本工作献给已故教授G. N. Ramachandran。
• Hemodialysis vascular access survival: Upper-arm native arteriovenous fistula
  作者：Bradley S. Dixon、Lisa Novak、Jerry Fangman

  DOI：10.1053/ajkd.2002.29886

  日期：2002.1

  Achieving Dialysis Outcomes Quality Initiative guidelines for native arteriovenous fistulae using the radiocephalic forearm fistula (lower-arm fistula [LAF]) is difficult. This study reports results using the upper-arm native arteriovenous fistula (UAF). From a prospective access database (1992 to 1998), this study was based on 204 patients (322 accesses). Average patient age was 56 +/- 1 years, 63% were men, and 47% had diabetes. A native fistula was the first access in 73% of patients (36%, LAFs; 37%, UAFs) and accounted for 48% of subsequent accesses (13%, LAFs; 35%, UAFs). Younger men were more likely to receive an LAF, but there was no demographic difference between patients receiving a UAF or arteriovenous graft (AVG). Both primary unassisted and cumulative access patencies were significantly better for UAFs than either LAFs or AVGs. For first accesses, cumulative access patency rates at 1, 3, and 5 years were 71%, 57%, and 57% for UAFs; 54%, 46%, and 36% for LAFs; and 54%, 28%, and 0% for AVGs (P < 0.01). Despite shorter access survival, AVGs required more total access procedures than either UAFs or LAFs (procedures per access: 2.5, 1.0, and 0.6 for AVGs, UAFs, and LAFs, respectively). When used, catheters were required for dialysis for a longer time for UAFs (median catheter days, 36, 53, and 56 for AVGs, LAFs, and UAFs, respectively; P < 0.05). Access flow rates were greater in UAFs (1,247 mL/min; n = 48; P < 0.01) than AVGs (851 mL/min; n = 30) or LAFs (938 mL/min; n = 31). There was no evidence that UAFs were banded or ligated for steal syndromes or heart failure more often than AVGs or LAFs. These results show that the UAF Is a good alternative to an AVG for achieving Dialysis Outcomes Quality Initiative guidelines. (C) 2002 by the National Kidney Foundation, Inc.
• US4338293A
  申请人：——

  公开号：US4338293A

  公开（公告）日：1982-07-06