A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Recent synthetic methodologies for imidazo[1,5-]pyridines and related heterocycles. | LitMetric

Imidazo[1,5-]pyridine is a significant structural component of a large number of agrochemicals and pharmaceuticals. The synthesis of imidazo[1,5-]pyridine has been a subject of intense research for numerous decades. A large number of transformations are now available to conveniently access imidazo[1,5-]pyridine from readily available starting materials. This review details the recent development in imidazo[1,5-]pyridine construction involving cyclocondensation, cycloaddition, oxidative cyclization, and transannulation reactions.

Download full-text PDF

Source
http://dx.doi.org/10.1039/d2ob00386dDOI Listing

Publication Analysis

Top Keywords

large number
8
synthetic methodologies
4
methodologies imidazo[15-]pyridines
4
imidazo[15-]pyridines heterocycles
4
imidazo[15-]pyridine
4
heterocycles imidazo[15-]pyridine
4
imidazo[15-]pyridine structural
4
structural component
4
component large
4
number agrochemicals
4

Similar Publications

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!