Regosz A, Vogel S S, Swirydo A
Pol J Pharmacol Pharm. 1976 May-Jun;28(4):375-8.
In aqueous solution N-pyrrolidinomethyltetracycline (PTC) undergoes decomposition into tetracycline, epitetracylcine, anhydroepitetracycline and ynhydrotetracycline. The decomposition products were identified and separated by TLC and their activity was estimated microbiologically.