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العنوان
SYNTHESIS OF MODIFIED GLYCOSIDES AS EXPECTED POTENTIAL ANTIMETABOLITE /
المؤلف
HASSAN, ASHRAF SAYED.
الموضوع
- . - . - . Chemistry.
عدد الصفحات
1 VOL. (various paging’s) :
الفهرس
Only 14 pages are availabe for public view

from 233

from 233

Abstract

Part I: A first reported method for preparation of a new class of acrylamide thioglycosides via one-pot reaction of the potassium 2-cyanoethylene-1-thiolate salts with 2,3,4,6- tetra-O-acetyl-a-D-gluco- and galactopyranosyl bromides has been studied. The E-configuration of these thioglycosides were proven by their transformations to the corresponding 5-aminopyrazoles.
Part II: A first reported method for preparation of a new class of thiophene thioglycosides via one-pot reaction of the sodium thiophenethiolate salts with 2,3,4,6-tetra-O-acetyl-a- D-gluco- and galactopyranosyl bromides has been studied. The sodium thiophenethiolate salts are prepared using sodium cyanoethylene thiolate salts.