Cobalt-Catalyzed Intramolecular Olefin Hydroarylation Leading to Dihydropyrroloindoles and Tetrahydropyridoindoles
作者:Zhenhua Ding、Naohiko Yoshikai
DOI:10.1002/anie.201305151
日期:2013.8.12
Regiodivergent catalysis: Cobalt N‐heterocyclic carbene (NHC) catalysts promote intramolecularolefinhydroarylation of indoles bearing an N‐homoallyl or bis(homoallyl) tether and a C3 aldimine directing group to afford dihydropyrroloindoles and tetrahydropyridoindoles under mild conditions. The course of the cyclization is dependent on the tether, but can be controlled by the NHC ligand.
Real-Time Biological Annotation of Synthetic Compounds
作者:Christopher J. Gerry、Bruce K. Hua、Mathias J. Wawer、Jonathan P. Knowles、Shawn D. Nelson Jr.、Oscar Verho、Sivaraman Dandapani、Bridget K. Wagner、Paul A. Clemons、Kevin I. Booker-Milburn、Zarko V. Boskovic、Stuart L. Schreiber
DOI:10.1021/jacs.6b04614
日期:2016.7.20
experiment, to annotate rapidly and inexpensively the biological activities of newly synthesized compounds. This readilyaccessible and inexpensive “real-time” profiling method can be used in a prospective manner to facilitate, for example, the efficient construction of performance-diverse small-molecule libraries that are enriched in bioactives. Here, we demonstrate this concept by synthesizing ten triads
作者:Martyn R. Ashcroft、Adrian Bury、Christopher J. Cooksey、Alwyn G. Davies、B.Dass Gupta、Michael D. Johnson、Helen Morris
DOI:10.1016/s0022-328x(00)93390-4
日期:1980.8
a chain mechanism in which a key step is a novelprocess in which homolytic attack of a trichloromethyl or 4-toluenesulphonyl radical at the δ-carbon of the butenyl ligand leads to synchronous or subsequent attack of the incipient γ-carbon radical on the α-carbon, causing cyclisation and displacement of cobaloxime(II). The other propagation step involves the reaction of the cobaloxime(II) with the
Three-Component Asymmetric Ni-Catalyzed 1,2-Dicarbofunctionalization of Unactivated Alkenes via Stereoselective Migratory Insertion
作者:Omar Apolinar、Taeho Kang、Turki M. Alturaifi、Pranali G. Bedekar、Camille Z. Rubel、Joseph Derosa、Brittany B. Sanchez、Quynh Nguyen Wong、Emily J. Sturgell、Jason S. Chen、Steven R. Wisniewski、Peng Liu、Keary M. Engle
DOI:10.1021/jacs.2c06636
日期:2022.10.26
asymmetric 1,2-dicarbofunctionalization of unactivated alkenes with aryl iodides and aryl/alkenylboronic esters under nickel/bioxazoline catalysis is disclosed. A wide array of aryl and alkenyl nucleophiles are tolerated, furnishing the products in good yield and with high enantioselectivity. In addition to terminal alkenes, 1,2-disubstituted internal alkenes participate in the reaction, establishing two contiguous
tether intermediates for the synthesis of macrocyclic ghrelin receptor modulators
申请人:Tranzyme Pharma, Inc.
公开号:EP2644618A1
公开(公告)日:2013-10-02
The present invention relates to intermediates of conformationally-defined macrocyclic compounds that bind to and/or are functional modulators of the ghrelin (growth hormone secretagogue) receptor including GHS-R1a and subtypes, isoforms and/or variants thereof and the use of these interemdaites to prepare said macrocyclic compounds.