[Amino sulfonyl-2-oxo-nicotinyl]derivatives of cephalosporin
[Halo-4-(4,5-dihydro-4,4-dimethyl-2-oxazolyl)-phenyl]octadecan-o
[Hexakis(pentenenitrilo)nickel II]bis-[.mu.-(cyano) bis(tripheny
[N-benzyl-o-(2,6-dichloroanilino)phenyl]acetic acid derivatives
[R(Cl)GaAs(SiR'.sub.3).sub.2 ].sub.n
[[[(2,4-Dioxo-1-imidazolidinyl)amino]carbonyl]amino]-acetylcepha
[[[(2,4-Dioxo-1-imidazolidinyl)amino]carbonyl]amino]-acetylcepha
[[[Imidazolidinyl amino]carbonyl]amino]acetyl cephalosporin deri
{(7S)-7-[(2R )-2-(3-chlorophenyl)-2-hydroxyethylamino)-2-hydroxy