首页>
外文OA文献
>Relationships between structure and carbonyl streching frequencies of the .BETA.-lactam ring and the 7-acylamino group in 1-thia- and 1-oxa-cephem antibiotics. Importance of the bending angle of the C(4)-C(5) bond from plane C(6)-N(5)-C(8) in the .BETA.-lactam ring.
【2h】
Relationships between structure and carbonyl streching frequencies of the .BETA.-lactam ring and the 7-acylamino group in 1-thia- and 1-oxa-cephem antibiotics. Importance of the bending angle of the C(4)-C(5) bond from plane C(6)-N(5)-C(8) in the .BETA.-lactam ring.