14 research outputs found
Gold-Catalyzed Oxidative Cascade Cyclization of 1,3-Diynamides: Polycyclic N‑Heterocycle Synthesis via Construction of a Furopyridinyl Core
A facile
and practical approach to construct a furopyridinyl motif
through a gold-catalyzed cascade cyclization of easily accessible
diynamides is described. This strategy offers a straightforward approach
to furo[2,3-c]isoquinoline and 6H-furo[3′,2′:5,6]pyrido[3,4-b]indole
derivatives. The reaction could build up
four new bonds and two additional heteroaromatic rings via a single
operation. The heterocyclic products show promising blue luminous
performance with fluorescence quantum yields up to 75%
Supplementary document for Optomechanical squeezing with pulse modulation - 6056967.pdf
Solutions of Langevin Equations and comparison between the result with and without pulse modulation in phase spac
Divergent Access to Polycyclic <i>N</i>‑Heterocyclic Compounds through Büchner-Type Dearomatization Enabled Cycloisomerization of Diynamides under Gold Catalysis
Catalytic dearomatization has been
considered as a valuable approach
to convert readily accessible flat molecules to products with three-dimensional
frameworks. Herein, an unprecedented gold-catalyzed oxidative Büchner-type
cyclopropanation is described that enables the cycloisomerization
of diynamides. By variation of the position of substituents on the
phenyl ring, a variety of fused N-heterocyclic products
with challenging structural skeletons were obtained divergently
Gold-Catalyzed Atom-Economic Synthesis of Sulfone-Containing Pyrrolo[2,1‑<i>a</i>]isoquinolines from Diynamides: Evidence for Consecutive Sulfonyl Migration
A gold-catalyzed
cascade reaction of conjugated diynamides has
been developed. In this way, a series of sulfone-containing pyrrolo[2,1-a]isoquinolines featuring the core structural motifs of
lamellarin alkaloids were prepared atom economically. Mechanistic
studies including DFT calculations uncovered a consecutive 1,2-migration
of the sulfonyl group for the formation of a pyrrole ring
Gold-Catalyzed Atom-Economic Synthesis of Sulfone-Containing Pyrrolo[2,1‑<i>a</i>]isoquinolines from Diynamides: Evidence for Consecutive Sulfonyl Migration
A gold-catalyzed
cascade reaction of conjugated diynamides has
been developed. In this way, a series of sulfone-containing pyrrolo[2,1-a]isoquinolines featuring the core structural motifs of
lamellarin alkaloids were prepared atom economically. Mechanistic
studies including DFT calculations uncovered a consecutive 1,2-migration
of the sulfonyl group for the formation of a pyrrole ring
Gold-Catalyzed Atom-Economic Synthesis of Sulfone-Containing Pyrrolo[2,1‑<i>a</i>]isoquinolines from Diynamides: Evidence for Consecutive Sulfonyl Migration
A gold-catalyzed
cascade reaction of conjugated diynamides has
been developed. In this way, a series of sulfone-containing pyrrolo[2,1-a]isoquinolines featuring the core structural motifs of
lamellarin alkaloids were prepared atom economically. Mechanistic
studies including DFT calculations uncovered a consecutive 1,2-migration
of the sulfonyl group for the formation of a pyrrole ring
Association of clinical parameters with overall survival by Kaplan-Meier curves and the log-rank test.
<p><b>A.</b> AFP-normal, AFP-elevated or AFP-diagnostic patients. <b>B.</b> Patients with BCLC stages A+B or C. <b>C.</b> Patients with Child-Puge class A or B. <b>D.</b> Patients with or without satellite nodules. SN: satellite nodules.</p
Univariate and Multivariate Cox proportional hazards regression analysis of miRNAs in relation to HCC outcome.
<p>HR, hazard ratio; CI, confidence interval; miR, microRNA.</p><p>Univariate and Multivariate Cox proportional hazards regression analysis of miRNAs in relation to HCC outcome.</p
Perioperative Allogenenic Blood Transfusion Is Associated with Worse Clinical Outcomes for Hepatocellular Carcinoma: A Meta-Analysis
<div><p>Background and Objective</p><p>The impact of perioperative allogenenic blood transfusion (ABT) on clinical outcomes for hepatocellular carcinoma (HCC) is conflicting and unclear. The aim of this meta-analysis is to evaluate the association between ABT and HCC clinical outcomes. Outcomes evaluated were all-cause death, tumor recurrence and postoperative complications.</p> <p>Methods</p><p>Relevant articles were identified through MEDLINE search (up to November 2012). Meta-analyses were performed by using the fixed or random effect models. Study heterogeneity was assessed by Q-test and I<sup>2</sup> test. Publication bias was evaluated by funnel plots, Egger′s and Begg’s test.</p> <p>Results</p><p>A total of 5635 cases from 22 studies finally met our inclusion criteria. Meta-analysis indicated HCC patients with ABT had an increased risk of all-cause death at 3 and 5 years after surgery (respectively: OR = 1.92, 95% CI, 1.61–2.29,P<0.001; OR = 1.60, 95% CI, 1.47–1.73,P<0.001 ) compared with those without ABT. The risk of tumor recurrence was significantly higher for ABT cases at 1, 3 and 5 years (respectively: OR = 1.70, 95% CI, 1.38–2.10, P<0.001; OR = 1.22, 95% CI, 1.08–1.38, P<0.001; OR = 1.16, 95% CI, 1.08–1.24, P<0.001). The HCC cases with ABT significantly increased postoperative complications occurrence compared with non-ABT cases (OR = 1.78,95% CI, 1.34–2.37, P<0.001).</p> <p>Conclusions</p><p>The findings from the current meta-analysis demonstrated that ABT was associated with adverse clinical outcomes for HCC patients undergoing surgery, including increased death, recurrence and complications. Therefore, ABT should not be performed if possible.</p> </div
Receiver operating characteristic curve analysis for predicting prognostic accuracy of hepatocellular carcinoma with TACE treatment.
<p>ROC curves for the combination of AFP and satellite nodules, miR-200a and the combination of AFP, satellite nodules and miR-200a in total 136 patients and subgroup of HCC patients with normal (≤20 ng/ml), elevated (20–400 ng/ml) and diagnostic (>400 ng/ml) AFP level, respectively. The sensitivity, specificity and AUC were indicated below each ROC graph. SN: satellite nodules.</p
