130812-06-5 20-((2-Amino-2-carboxyethyl)thio)-20-deoxo-20-hydroxycirramycin A(sub 1) 6108C Antibiotic 6108C Cirramycin A(sub 1), 20-((2-amino-2-carboxyethyl)thio)-20-deoxo-20-hydroxy- Cirramycin A1, 20-((2-amino-2-carboxyethyl)thio)-20-deoxo-20-hydroxy-