(4-CHLORO-3-NITROPHENYL)(PIPER

Two‐Step, One‐Pot Synthesis of Inosine, Guanosine, and 2′‐Deoxyguanosine O6‐Ethers via Intermediate O6‐(Benzotriazol‐1‐yl) Derivatives

) and Cs2 CO3 under a nitrogen atmosphere. Conversion to the O 6 ?(benzotriazol?1?yl) ethers occurs within about 10 min for inosine, and within about 60 min for guanosine and 2??deoxyguanosine. Then, for reaction with alcohols, the reaction mixture

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

-4-sulfonate (15 ,16 ), methyl 4-(6-methoxynaphthalene-2-yl)-4-oxo-2-butenoate (17 ), N-(1-pyrenyl)maleimide (18 ), monobromobimane (19 –23 ), o -phthaldialdehyde (24 ,25 ), 9-fluorenylmethyloxycarbonyl chloride (26 ), and 2-chloro-1-methylpyridinium

Convenient and Efficient Approach to the Permanent or Reversible Conjugation of RNA and DNA Sequences with Functional Groups

2 ) 5‐Cholesten‐3‐one (Aldrich) D‐(+)Biotin 2‐nitrophenyl ester (Berry & Associates, http://www.berryassoc.com/)