4-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-3-oxaspiro[bicyclo[2.1.1]hexane-2,3'-oxetane]-1-carboxylic acid 100mg

4-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)-3-oxaspiro[bicyclo[2.1.1]hexane-2,3'-oxetane]-1-carboxylic acid 100mg