Rosenbrook W, Carney R E, Egan R S, Stanaszek R S, Cirovic M, Nishinaga T, Mochida K, Mori Y
J Antibiot (Tokyo). 1975 Dec;28(12):960-4. doi: 10.7164/antibiotics.28.960.
7-Epi-spectinomycin (9) and 7-epi-4(R)-dihydrospectinomycin (10) have been prepared and their structure firmly established by proton magnetic resonance. Both of these spectinomycin analogs are devoid of antibiotic activity.