2-,3-, or 4-Pyridinylmethylamino arylic acids as thromboxane A.s

2-,6-diphenylpyridine compounds useful as dye precursors

2-.beta.-D-ribofuranosylselenazole-4-carboxamide compounds

2-.beta.-D-ribofuranosylselenazole-4-carboxamide compounds and m

2-.beta.-D-ribofuranosylselenazole-4-carboxamide compounds and m

2-.beta.-D-Ribofuranosylthiazole-4-carboxamidine compounds

2-4-Diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazol

2-5,disubstituted-7,7,8,8-tetracyanoquinodimethanes

2-6-diaminopurine precursors

2-Acetoxy-4-(2-bornyloxy) butane

2-acetoxymethyl-4-halo-butyl-1-yl acetates

2-acetyl- and 2-propionylpyridine selenosemicarbazones

2-acetyl-6-cyanopyridines and their use as intermediates in the

2-acetyl-6-cyanopyridines and their use as intermediates in the

2-acetyl-and 2-propionylpyridine thiosemicarbazones

2-Acyl-4-oxo-pyrazino-isoquinoline derivatives and process for t

2-Acyl-6-aminomethylphenol derivatives

2-acyl-6-methylnaphthalene preparation

2-Acylamidoethyl-2-imidazolines

2-Acylamidoethyl-2-tetrahydropyrimidines