Total synthesis of (-)-stemonine.

Org Lett

Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, USA.

Published: September 2003

[reaction: see text] An enantioselective total synthesis of (-)-stemonine (1) is reported via a convergent assembly of the acyclic precursor 2. Key transformations include a Staudinger-aza-Wittig reaction to form the central perhydroazepine ring system and an iodine-induced tandem cyclization to construct the pyrrolidino-butyrolactone framework.

Download full-text PDF

Source
http://dx.doi.org/10.1021/ol035368qDOI Listing

Publication Analysis

Top Keywords

total synthesis
8
synthesis --stemonine
8
--stemonine [reaction
4
[reaction text]
4
text] enantioselective
4
enantioselective total
4
--stemonine reported
4
reported convergent
4
convergent assembly
4
assembly acyclic
4

Similar Publications

Background: Gestational Diabetes Mellitus (GDM) prevalence is rising worldwide, but optimal dietary strategies remain unclear. The eMOM pilot RCT compared a plant-protein rich Healthy Nordic Diet (HND) and a moderately carbohydrate restricted diet (MCRD) and their potential effects on time in glucose target range (≤ 7.8 mmol/L, %TIR), and on newborn body composition.

View Article and Find Full Text PDF

Background: Umbilical cord care is an important aspect of newborn health, and different practices exist around the world, often influenced by cultural, healthcare infrastructure, and socioeconomic factors. The objective of this systematic review is to synthesize current literature on umbilical cord care practices in Nigeria, with an emphasis on the impact of cultural beliefs, healthcare infrastructure, and socioeconomic factors.

Methods: A comprehensive search for literature was performed across PubMED, MEDLINE and Google scholar for studies published between 2010 and 2023.

View Article and Find Full Text PDF

Development of a disease diagnostic model to predict the occurrence of central precocious puberty of female.

J Pediatr Endocrinol Metab

January 2025

Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.

Objectives: To develop a clinical model for predicting the occurrence of Central Precocious Puberty based on the breast development outcomes in chinese girls.

Methods: This is a retrospective study, which included a total of 1,001 girls aged 6-9 years old who visited the outpatient clinic of Beijing Children's Hospital from January 2017 to October 2022 for "breast development". Participants were categorized into pubertal development (PD) cohort and simple premature breast development (PT) according to the criteria, and information was collected and tested for relevant indicators.

View Article and Find Full Text PDF

Background: Mental wellbeing, one continuum alongside mental illness in a dual-continua mental health model, has attracted less attention compared with substantial studies concerning mental illness amongst elite athletes. Notably, the promotion and protection of mental wellbeing contribute to not only a positive status of flourishing but also a reduction in the future risk of mental illness, which can potentially facilitate a status of complete mental health. Despite the critical role of wellbeing promotion and protection, there are limited evidence-based strategies to design and implement wellbeing interventions in elite athletes.

View Article and Find Full Text PDF

Background: CblC type methylmalonic aciduria (cblC disease) is the most common inborn error of vitamin B12 metabolism and due to mutations in the MMACHC gene. The earlier the diagnosis, the better the prognosis. Therefore, convenient and inexpensive detection method is needed.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!