id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-1146	Hussain, E. M.	Synthesis of 3-C-Spiro Ring Nucleoside Analogues, of Possible Biological Activity	2017	10	.pdf	application/pdf	3376	193	70	IR spectra of 3 showed the disappearance of stretching band at 1640 cm -1 for ( C=C ) and disappearance of (CO) group at 1690cm-1.To obtain the derivative 5 ,the isopropylidene acetal at C- / 1 and C- / 2 was removed with acetic acid followed by periodate oxidation and borohydride reduction .The /1-hydroxyl group was protected with benzoyl group by using benzoyl chloride to give the derivative 6.The IR spectra of 6 showed a stretching band at 1700cm-1 for (CO) group with the disappearance of (OH) group at 3385cm- 1.Compound 6 was treated with a mixture of trifluoroacetic acid and acetic acid followed by the reaction with trifluoroacetic anhydride gave 7. 3 (OH) 3400 ; (C=C) aromatic ring 1480-1640,(C=N) 1660; (C=C) bending 800.	cache/iajs-1146.pdf	txt/iajs-1146.txt