All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
Abstract
Synthesis And Antimicrobial Evaluation Of Some Substituted Pyrido [2,3,-d]pyrimidines
Author(s): Swati, Shalini Shukla, A. K Mishra, Lalit Prakash
Synthesis of di-and trisubsituted pyrido[2,3-d] pyrimidines has been performed by the chemical transformation of 2,3,4,6,-tetrasubstituted pyridine with formamide, urea and different arlisocyanates. The authenticity of the products was established with the help of elemental analyses, IR and NMR spectral data. All of the synthesized compounds have antimicrobial activity.
xxx videos hd videos, bf video, muslim sex video, english xxx, ibooma com telugu movie 2021, ove sex video
PDF