Towards the biosynthesis of the aromatic products of the Mediterranean mollusc Scaphander lignarius: isolation and synthesis of analogues of lignarenones
摘要:
Secondary metabolites of the Mediterranean mollusc Scaphander lignarius from different collection sites have been investigated, proving the constant presence of a number of minor metabolites correlated to the already known lignarenones. Complete characterization of the new metabolites has been supported by enantioselective synthesis. The data are consistent with the origin of this unique class of omega-phenyloctanoids from a common polyketide pathway. (C) 2007 Elsevier Ltd. All rights reserved.
[EN] MACROCYCLIC SPIROETHERS AS MCL-1 INHIBITORS<br/>[FR] SPIROÉTHERS MACROCYCLIQUES UTILISÉS EN TANT QU'INHIBITEURS DE MCL-1
申请人:ASCENTAGE PHARMA SUZHOU CO LTD
公开号:WO2020147802A1
公开(公告)日:2020-07-23
Provided are compounds represented by Formula (I-A) and the pharmaceutically acceptable salts and solvates thereof, wherein R8, R9a, R9b, R9c, R9d, X, Y, Z, Z1, W, and (aa) are as defined as set forth in the specification. Provided are also compounds of Formula (I-A) for use to treat a condition or disorder responsive to Mcl-1 inhibition such as cancer.
Asymmetric Allyl- and Crotylboration with the Robust, Versatile, and Recyclable 10-TMS-9-borabicyclo[3.3.2]decanes
作者:Carlos H. Burgos、Eda Canales、Karl Matos、John A. Soderquist
DOI:10.1021/ja043612i
日期:2005.6.1
preparation of 6. The reagent gives predictable stereochemistry and exhibits an extremely high level of reagent control in the allylboration of d-glyceraldehyde acetonide. A simple and efficient procedure has been developed for the preparation of all four geometric and enantiomeric isomers of the B-crotyl-10-TMS-9-BBDs (10) from optically pure enantiomers of B-MeO-10-TMS-9-BBD (3). These reagents 10 also add
Stereoselektive Synthese von Alkoholen, IX. Absolute Konfiguration von Stegobinon
作者:Reinhard W. Hoffmann、Wolfgang Ladner、Klaus Steinbach、Werner Massa、Roland Schmidt、Günther Snatzke
DOI:10.1002/cber.19811140811
日期:1981.8
Eine diastereo- und enantioselektive Synthese des Homoallylalkohols 5 aus dem Boronester 4 eröffnete den Zugang zu optisch aktiven Isomeren des Stegobinons. Stegobinon-Isomere mit der richtigen absoluten Konfiguration an C-2 wurden ausgehend von (3S)-3-Hydroxy-2-methylbuttersäureester 17 dargestellt. Das CD-Spektrum des Isomeren 20B entsprach dem des Naturstoffs. Daraus wurde die konfiguration zu 2S
Eine非对映体和对映体合成人5硼烷合成体4链刚体优化体Stegobinons。Stegobinon-Isomere mit der der richtigen Konfiguration一架C-2炸药(3S)-3-羟基-2-甲基丁二酸酯17 dargestellt。Naturstoffs的CD CD-Spektrum des Isomeren 20B。Daraus wurde模具konfigurationつ2S,3R,7R献给DASnatürlicheStegobinon abgeleitet UND第三人以EINERöntgenstrukturanalyseDES 7- Epistegobinons(20A)erhärtet。
Synthesis of the macrocyclic core of iriomoteolide-1a
作者:Shuo Li、Zheng Chen、Zhengshuang Xu、Tao Ye
DOI:10.1039/c0cc00915f
日期:——
The fully functionalized macrocyclic core of the marine natural product iriomoteolide-1a has been successfully constructed in a convergent and enantioselective manner.
Chiral synthesis via organoboranes. 7. Diastereoselective and enantioselective synthesis of erythro- and threo-.beta.-methylhomoallyl alcohols via enantiomeric (Z)- and (E)-crotylboranes
作者:Herbert C. Brown、Krishna S. Bhat
DOI:10.1021/ja00279a042
日期:1986.9
Synthese par reaction de crotylboranes avec les acetaldehyde, acroleine, benzaldehyde, propanal. Mecanismes