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: 3122
Function: getPubMedXML

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

Synthesis and cardiac effects of 3,4-dihydropyrimidin-2(1H)-one-5 carboxylates. | LitMetric

A series of 4-(substituted)-3,4-dihydropyrimidinone derivatives have been synthesized by heating 1,3 dicarbonyl compounds, urea, and aromatic aldehydes in acetic acid under microwave irradiation conditions. The cardiovascular effects of 3,4-dihydropyrimidinones were studied on isolated perfused frog heart at different dose levels and compared with the activity of digoxin. The interaction of 3,4-dihydropyrimidinones with beta-blocker and calcium channel blocker was also investigated. Compound 4d emerged as the most interesting compound in this series with potential cardiotonic activity.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bmcl.2006.06.059DOI Listing

Publication Analysis

Top Keywords

synthesis cardiac
4
cardiac effects
4
effects 34-dihydropyrimidin-21h-one-5
4
34-dihydropyrimidin-21h-one-5 carboxylates
4
carboxylates series
4
series 4-substituted-34-dihydropyrimidinone
4
4-substituted-34-dihydropyrimidinone derivatives
4
derivatives synthesized
4
synthesized heating
4
heating dicarbonyl
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!