Results 141 to 150 of about 9,503 (262)

Iridium‐Catalyzed Ionic Hydrogenation of Multi‐Aza Heterocycles

Angewandte Chemie, EarlyView.
Saturated nitrogen‐containing heterocycles are ubiquitous in bioactive molecules and are thus attractive synthetic targets. A readily accessible cyclometalated iridium(III) complex reduces 14 different aromatic aza heterocycles to (partially)saturated multi aza‐heterocycles enlarging accessible chemical space while displaying high tolerance toward ...
Arthur Despois, Nicolai Cramer
wiley   +1 more source

Comment on Othman et al. Ventricular Topology in Congenital Heart Defects Associated with Heterotaxy: Can We Find Patterns Reflecting the Syndrome-Specific Tendency for Visceral Symmetry? <i>J. Cardiovasc. Dev. Dis.</i> 2025, <i>12</i>, 430. [PDF]

J Cardiovasc Dev Dis
Pugnaloni F, Calcagni G, Marino B.
europepmc   +1 more source

Beyond the Fixed Charge: A New On‐Tissue Derivatisation Strategy Employing Photoionisable Chromophores for Mass Spectrometry Imaging of Amino‐Containing Metabolites

Angewandte Chemie, EarlyView.
We introduce a novel chemical derivatisation strategy for the UV‐activated detection of elusive metabolites. Incorporation of a tocopherol‐active chromophore allows for the detection of tagged analytes as photoionised radical cations, selectively induced by a 266 nm laser.
Sofia R. McGowan, Andrew J. Tague, Ashna A. Kumar, Marie Ranson, Christopher J. T. Hyland, Shane R. Ellis   +5 more
wiley   +1 more source

Isomerism of the right atrial appendages with bilateral eparterial bronchi: clinical challenges and surgical management guided by 3D cardiac computed tomography. [PDF]

Indian J Thorac Cardiovasc Surg
Shah J, Pathuri S, Richardson R.
europepmc   +1 more source

Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization

Angewandte Chemie, EarlyView.
The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu, Zeliang Zhang, Benedikt Seligmann, Van Hung Bui, Tuan‐Anh Minh Nguyen, Thu‐Thuy T. Dang, Jakob Franke   +6 more
wiley   +1 more source

Ventricular Topology in Congenital Heart Defects Associated with Heterotaxy: Can We Find Patterns Reflecting the Syndrome-Specific Tendency for Visceral Symmetry? [PDF]

J Cardiovasc Dev Dis
Othman T, Alsaiad AMA, Jijeh AMZ, Männer J, Yelbuz TM.   +4 more
europepmc   +1 more source

Remote Desaturation of Unprotected Amines and C─H Amination of Alkanes by Polarity‐Matched N‐Radical Cations

Angewandte Chemie, EarlyView.
Highly electrophilic N‐radical cations enable efficient and selective H‐atom transfer (HAT) of unprotected amines. In this exceedingly practical strategy, simple CuCl catalyzes an interrupted Hofmann–Löffler–Freytag (HLF) reaction to afford δ desaturated amines, aza‐heterocycles, and C─H aminated alkanes without protecting groups.
Pavitra Laohapaisan, Ross M. Dare, Meredith L. Rudich, Jacob J. A. Garwood, Siyuan Gong, R. Thomas Simons, David A. Nagib   +6 more
wiley   +1 more source

Developmental, normal, and abnormal anatomy of the coronary sinus. [PDF]

Indian Pacing Electrophysiol J
Anderson RH, Spicer DE, Sanchez-Quintana D.   +2 more
europepmc   +1 more source

Rhenium‐Based β‐Galactosidase Probe Allows Senescence Profiling by Mass Cytometry

Angewandte Chemie, EarlyView.
Senescence‐associated β‐galactosidase (SA‐β‐Gal) activity is a widely accepted biomarker of cellular senescence, yet its integration with other senescence markers has been limited by available detection methods. Here, we introduce ReGal, a mass cytometry‐compatible SA‐β‐Gal activity probe that can be multiplexed with established markers of senescence ...
Adam Tam, Kris Elbein, Aleida G. Gonzalez, Edgar A. Arriaga, Mark Nitz   +4 more
wiley   +1 more source

COVID-19 in an adult with right isomerism and Fontan circulation: Successful management using risk stratification. [PDF]

Fujita Med J
Saito K, Yamabe S, Kojima A, Uchida H, Takigawa Y, Nakashima C, Hoshino M, Takada K, Fukui S, Yoshikawa T, Izawa H, Yamada A.   +11 more
europepmc   +1 more source