Open capsular shift for multi directional shoulder instability
摘要:
We evaluated the outcome of open antero-inferior capsular shift in 17 patients with multidirectional instability of the shoulder who failed to respond to conservative treatment. Six shoulders presented with secondary impingement syndrome and 11 with involuntary instability. The mean duration of follow-up was 39 months (range 7-89 months). Based on the Rowe and Constant scores and the 12-item questionnaire of Dawson, the results were rated excellent in 14 patients, fair in 2 and poor in 1. All but 2 patients were satisfied with the results, although 6 patients experienced some residual pain, and 4 suffered minor instability. There were no neurovascular complications, infections or symptomatic posterior instability. Open antero-inferior capsular shift yields promising short-term to medium-term results in multidirectional, involuntary instability of the shoulder.
Photoredox-Mediated Minisci-type Alkylation of <i>N</i>-Heteroarenes with Alkanes with High Methylene Selectivity
作者:Guo-Xing Li、Xiafei Hu、Gang He、Gong Chen
DOI:10.1021/acscatal.8b04079
日期:2018.12.7
We report a highly efficient and chemoselective Minisci-type alkylation reaction of N-heteroarenes with alkanes under the reagent control of a hypervalent iodine oxidant PFBI-OH. In addition to the high reactivity, PFBI-OH demonstrated a high steric sensitivity for H abstraction of alkanes. This reaction is selective for more sterically accessible secondary C–H bonds over weaker tertiary C–H bonds
Regioselective Oxidation of Steroids by a Manganese Porphyrin Carrying Metal Coordinating Groups
作者:Sandro Belvedere、Ronald Breslow
DOI:10.1006/bioo.2001.1215
日期:2001.10
A manganese porphyrin having four 2,2'-bipyridyl groups on its meso positions was synthesized. In the presence of Cu2+ ions it catalyzes the regioselective oxidation of steroid substrates carrying auxiliary metalcoordinatinggroups.
�ber Bestandteile der Nebennierenrinde und verwandte Stoffe 82. Mitteilung 17-Iso-allopregnan-triol-(3?, 17?, 20?)
作者:I. Salamon
DOI:10.1002/hlca.19490320420
日期:——
17-Iso-allopregnan-triol-(3β, 17β, 20β) hergestellt; dieses wurde durch sein Diacetat charakterisiert und seine Konstitution wurde durch Abbau zu Androstanol-(3β)-on-(17) bewiesen. Der bisher als dieses Triol bezeichnete Stoff erwies sich als Gemisch von zwei bekannten Verbindungen. Die früher festgelegte Konfiguration der 17-Iso-allopregnan-tetrole-(3β, 17β, 20,21) wurde durch diese Reaktionen erneut bestätigt
还原von20α,21-Oxydo-17-iso-allopregnan-diol-(3β,17β)-monobenzoat-(3)mit Li [AlH 4 ] gab das bekannte 17-Iso-allopregnan-triol-(3β,17β ,20α)。Durch Hydrierung von20β,21-Oxydo-17-isoallopregnan-diol-(3β,17β)-monoacetat-(3)mit Li [AlH 4 ] wurde das unbekannte 17-Iso-allopregnan-triol-(3β,17β, 20β)赫氏;死于二乙二胺和塞纳河国死于二恶英的Abbau zu Androstanol-(3β)-(17)。Der bisher als死于Triol bezeichnete Stoff erwies sich als Gemisch
Kocor et al., Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques, 1958, vol. 6, p. 1,2
作者:Kocor et al.
DOI:——
日期:——
158. The application of the method of molecular rotation differences to steroids. Part IV. Optical anomalies