Isomerization of pirazolopyrimidines to pyrazolopyridines by ring-opening/closing reaction in aqueous NaOH.

An isomerization reaction of 7-aryl-3-formylpyrazolo[1,5-]pyrimidines to 5-aroyl-NH-pyrazolo[3,4-]pyridines proceeding with high yields in aqueous NaOH under microwave conditions is reported. This unprecedented transformation occurs by adding and eliminating a water molecule an ANRORC mechanism (adding the nucleophile, ring-opening, and ring-closing) studied using DFT calculations. The product's utility was proved as they have aroyl and NH groups that simple methods and readily available reagents easily modified; likewise, their optical properties were studied, highlighting their high potential as highly emissive modular dyes ( up to 99%).

Longitudinal determinants of thriving in Puerto Rican climate crisis migrants on the U.S. mainland: A structural equation model.

Climate-related disasters pose significant risks to mental health and well-being globally. Individuals from disaster-prone regions, such as Puerto Rico, are at even greater risk. The devastating effects of recurrent hurricanes, compounded with pre-existing structural disparities (e.

Novel enantiopure δ-thiolactones: synthesis, structural characterization, and reactivity studies.

A new series of chiral δ-thiolactone derivatives have been prepared. These compounds exemplify the acetalic N-C-S reversibility of fused thiazolidines toward the thermodynamic product. The stereochemistry of the synthesized compounds was elucidated using X-ray crystallography, NOESY spectroscopy, and DFT calculations.

Birthing parent and companion verbal reactions following interactions with inpatient postpartum health care team members: an observational study using naturalistic filming.

Background: Respectful, equitable, and supportive health care team interactions with patients and their companions are a key part of quality health care services. Despite the importance of communication and other aspects of engagement during inpatient postpartum care, little is known about how care is experienced during this period from families' perspectives.

Methods: This study collected video and audio data with 15 birthing families (n = 9 English-speaking and n = 6 Spanish-speaking) and their health care team members during inpatient postpartum care in a southeastern United States academic medical center.

The landscape of primary mismatch repair deficient gliomas in children, adolescents, and young adults: a multi-cohort study.

Background: Gliomas are a major cause of cancer-related death among children, adolescents, and young adults (age 0-40 years). Primary mismatch repair deficiency (MMRD) is a pan-cancer mechanism with unique biology and therapeutic opportunities. We aimed to determine the extent and impact of primary MMRD in gliomas among children, adolescents, and young adults.