Methyl-1-(mercaptomethyl)cyclopr... 

1,1-Cyclopropanedicarboxylic-aci... 

2-[1-(Mercaptomethyl)cyclopropyl... 

Rhodanine-3-acetic-acid 

Tetrazole-1-acetic-acid 

4-Amino-3-hydroxybutanoic-acid 

4-Amino-2-hydroxybutanoic-acid 

3-Aminoisobutyric-acid 

2-Aminoisobutyric-acid 

DL-3-Aminobutyric-acid 

D-2-Aminobutyric-acid 

L-2-Aminobutyric-acid 

DL-2-Amino-n-butyric-acid 

5-Cyanophthalide 

N-(Triphenylmethyl)-5-(4'-bromom... 

Ethyl-2-methyl-4-thiazolecarboxy... 

Methyl-2-amino-4-methyl-5-thiazo... 

Ethyl-2-amino-4-thiazoleformate 

2-Amino-4-thiazolecarboxylic-aci... 

3-(Cyclohexylamino)-1-propanesul... 

5-(o-Bromophenyl)-1H-tetrazole 

5-p-Nitrophenyl-1H-tetrazole 

1-Cyclohexy-5-(4-chlorobuty)tetr... 

5-Aminotetrazole 

5-Mercaptotetrazole-1-methanesul... 

1,1-Diphenyl-bistetrazole-5,5-di... 

N-(Triphenylmethyl)-5-(4'-methyl... 

1-(2-Dimethylaminoethyl)-5--merc... 

1-Ethyl-5-mercaptotetrazole 

5-p-Tolyl-1H-tetrazole 

Methylthiotetranitrazole 

5-Methyl-1H-tetrazole 

5-Mercaptotetrazole-1-methanesul... 

2-Amino-5-ethyl-1,3,4-thiadiazol... 

2-Mercapto-5-methyl-1,3,4-thiadi... 

2-Amino-5-mercapto-1,3,4-thiadia... 

2,5-Dimercapto-1,3,4-thiadiazole 

3-Morpholine-4-chloro-1,2,5-thia... 

3,4-Dichloro-1,2,5-thiadiazole 

Methyl-2-amino-4-thiazoleformate 

1-(Trimethylsilyl)imidazole 

2-(2-Aminothiazole-4-yl)-2-hydro... 

Boc-L-alanyl-oxamidine-acid 

2-Mercapto-4-methyl-5-thiazoleac... 

2-(2-Amino-4-thiazolyl)-2-(tertb...