Total synthesis of optically active (−)17β-hydroxy-Δ9(10)-desA-androsten-5-one
作者:Z.G. Hajos、D.R. Parrish、E.P. Oliveto
DOI:10.1016/s0040-4020(01)82508-4
日期:1968.1
aβ-methyl-5(6H)-indanone was resolved via the hydrogen phthalate-brucine salt. The dextrorotatory enantiomer (+)4 was then converted in a 5-step stereospecific totalsynthesis to the important BCD tricyclic intermediate (−)13. The synthesis also adds additional proof for the absolute configuration of the bicyclic keto alcohol (+)4 by correlation with (±_13, a known degradation product of natural steroids
or hydrogen with inversion of the absolute configuration via the two-step sequence consists of Grignard reaction or reduction of the carbonyl followed by pinacol-type rearrangement. This transformation was applied to the total synthesis of the [6-7] fused-ring sesquiterpene widdrol ((±)-9). The stereochemistry of the tertiary alcohol of 9 was specifically controlled by employing a bridge-cleaving method
NOVEL LIPIDS AND COMPOSITIONS FOR THE DELIVERY OF THERAPEUTICS
申请人:MANOHARAN Muthiah
公开号:US20120095075A1
公开(公告)日:2012-04-19
The present invention provides lipids that are advantageously used in lipid particles for the in vivo delivery of therapeutic agents to cells. In particular, the invention provides lipids having the following structure:
本发明提供了有利于用于体内向细胞传递治疗剂的脂质。具体而言,本发明提供具有以下结构的脂质:
Verfahren und Mittel zur Bekämpfung des Rhombenspanners Boarmia rhomboidaria
申请人:BASF Aktiengesellschaft
公开号:EP0183922A2
公开(公告)日:1986-06-11
Mittel zur Bekämpfung des Rhombenspanners Boarmia rhomboidaria, enthaltend
(Z, Z, Z)-3, 6, 9-Nonadecatrien (I) und/oder (Z, Z)-6, 9-Nonadecadien-3-on (II),
und seine Verwendung.