N,N'-Di(tert-butoxycarbonyl)th

Biotinylation of a Propargylated Cyclic (3′‐5′) Diguanylic Acid and of Its Mono‐6‐Thioated Analog Under “Click” Conditions

of the propargylated c‐di‐GMP 9 from the propargylated dinucleoside phosphate triester 5 . Abbreviations: GiBu , 2‐( N ‐isobutyryl)guanin‐9‐yl; TBDMS, tert ‐butyldimethylsilyl; Gua, guanin‐9‐yl. Adapted with permission from Grajkowski et al. (). Copyright 2010 American

Solid-Phase Guanidinylation of Peptidyl Amines Compatible with Standard Fmoc-Chemistry: Formation of Monosubstituted Guanidines

-pyrazole-1-carboxamidine and triflylguanidine, and guanidinylation with di-protected thiourea derivatives in combination with promoters such as Mukaiyama’s reagent, N -iodosuccinimide, and N ,N′ -diisopropylcarbodiimide.

Determination of Sulfur Amino Acids, Glutathione, and Related Aminothiols in Biological Samples by Gas Chromatography with Flame Photometric Detection

. GC-MS methods based on the conversion into tert -butyldimethylsilyl (33 ) and N(O,S)-propoxycarbonyl propyl ester (34 ) derivatives, and LC-MS method were highly sensitive and specific, but these methods require expensive equipment. Furthermore, CZE