Results 11 to 20 of about 140,160 (311)
Click-Free Synthesis of a Multivalent Tricyclic Peptide as a Molecular Transporter
The cellular delivery of cell-impermeable and water-insoluble molecules remains an ongoing challenge to overcome. Previously, we reported amphipathic cyclic peptides c[WR]4 and c[WR]5 consisting of alternate arginine and tryptophan residues as nuclear ...
Sumit Kumar+5 more
doaj +1 more source
Fused Tricyclic Guanidine Alkaloids: Insights into Their Structure, Synthesis and Bioactivity
A marine natural product possesses a diverse and unique scaffold that contributes to a vast array of bioactivities. Tricyclic guanidine alkaloids are a type of scaffold found only in marine natural products.
Nur Zahirah Abd Rani+4 more
doaj +1 more source
Path energy of two kinds of special tricyclic graphs
Aiming at the problem that there are many kinds of tricyclic graphs and the complexity of path matrix is high, the path energy of two kinds of tricyclic graphs with or without pendant vertices was studied by means of matrix analysis, the existence ...
Wenjing LI, Yanling SHAO
doaj +1 more source
Study of cascade ring-closing metathesis reactions en route to an advanced intermediate of Taxol [PDF]
A highly functionalized intermediate in the synthesis of Taxol has been synthesized, which features the tricyclic core and the required oxygen substituents at C1, C2, C7, C10 and C13. The key step, a ring-closing dienyne metathesis (RCDEYM) reaction, has
Letort, Aurélien+2 more
core +1 more source
Six regioisomers associated with the tricyclic core of thiaplakortones A–D have been synthesized. Reaction of 1H-indole-4,7-dione and 1-tosyl-1H-indole-4,7-dione with 2-aminoethanesulfinic acid afforded a regioisomeric series, which was subsequently ...
Brett D. Schwartz+5 more
doaj +1 more source
Hitting times for random walks on tricyclic graphs
Let G be a simple connected graph and [Formula: see text] Let [Formula: see text] be the expected hitting time from x to y in G and [Formula: see text] be the hitting time of G, where [Formula: see text] A tricyclic graph is a simple connected graph that
Xiao-Min Zhu, Xu Yang
doaj +1 more source
Cascade metathesis reactions for the synthesis of taxane and isotaxane derivatives [PDF]
Tricyclic isotaxane and taxane derivatives and have been synthesized by a very efficient cascade ring-closing dienyne metathesis (RCDEYM) reaction, which formed the A and B rings in one operation.
Aouzal, Remi+7 more
core +3 more sources
Highly efficient synthesis of the tricyclic core of Taxol by cascade metathesis [PDF]
An efficient enantioselective synthesis of the ABC tricyclic core of the anticancer drug Taxol is reported. The key step of this synthesis is a cascade metathesis reaction, which leads in one operation to the required tricycle if appropriate fine-tuning ...
Aldegunde M. J.+39 more
core +3 more sources
Development and Validation of eRADAR: A Tool Using EHR Data to Detect Unrecognized Dementia. [PDF]
ObjectivesEarly recognition of dementia would allow patients and their families to receive care earlier in the disease process, potentially improving care management and patient outcomes, yet nearly half of patients with dementia are undiagnosed. Our aim
Barnes, Deborah E+7 more
core +2 more sources
Beyond depression: Other uses for tricyclic antidepressants
Tricyclic antidepressants (TCAs) were originally designed and marketed for treating depression, but over time they have been applied to a variety of conditions, mostly off-label.
J. Schneider, M. Patterson, X. Jiménez
semanticscholar +1 more source