1,2-Dialkyl-3-phenyl-5-[4-(N-alkyl or N,N-dialkyl)amino-2-benzoy

1,2-Dialkylpyrazolium compounds having 3-(or 3,5-) nitrogen-cont

1,2-Diaminocyclohexane platinum (II) complexes having antineopla

1,2-Dihalogenoalkylsulfonyl isocyanates and 1,2-di-halogenocyclo

1,2-Dihydro-2-imino-1-(bromophenylalkyl)pyrimidines

1,2-Dihydro-3H-pyrrolo[1,2-a]pyrrole-1-nitriles

1,2-Dimethyl-3 or 5-piperazinyl-pyrazolium salts

1,2-Diphenyl-4,5,6,7-tetrahydroindoles

1,2-Diphenyl-ethane derivatives

1,2-Halohydrincarboxylic acid esters and a process for their pre

1,2-O-dialkylmethylidene-glycero-3-phosphatides

1,2-Oxachalcogenol-1-ium salts

1,2-Oxaphospholanes

1,2-Oxaphospholanes

1,2-Pentamethylene-1,4-dihydropyridine derivatives

1,23-Dihydroxyvitamin D compounds

1,24-dihydroxy-.DELTA..sup.22 -vitamin D.sub.3 and process for p

1,25-dihydroxyvitamin D.sub.2 compounds

1,3 Diaminopropane derivatives

1,3,3,5,7,7-Hexanitroperhydro-1,5-diazocine, N-nitroso analogs t