The present invention relates to a compound of formula (I) wherein R
1
is hydrogen or together with R
2
is oxo; R
2
represents hydroxy, OC(O)XR
7
, OC(O)NHXR
7
or R
2
together with R
1
is an oxo group; R
3
is hydrogen or a hydroxyl protecting group; R
4
is hydrogen or XR
7
; R
5
is hydrogen, XR
7
,, C(O)XR
7
or C(O)NHXR
7
; R
6
is hydrogen or R
5
and R
6
taken together with the intervening atoms form a cyclic carbonate having the following structure and pharmaceutically acceptable salts and solvates thereof and solvates thereof; to processes for their preparation and their use in the therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.
本发明涉及一种式 (I) 的化合物,其中 R
1
是氢或与 R
2
是氧代
2
代表羟基、OC(O)XR
7
、OC(O)NHXR
7
或 R
2
与 R
1
是一个氧代基团
3
是氢或羟基保护基团;R
4
是氢或 XR
7
; R
5
是氢、XR
7
,C(O)XR
7
或 C(O)NHXR
7
; R
6
是氢或 R
5
和 R
6
与中间原子一起形成具有以下结构的环状碳酸酯及其药学上可接受的盐类和溶解物;以及它们的制备工艺和在治疗或预防人体或动物体内全身或局部细菌感染中的用途。
Nishimura,T. et al., Chemical and pharmaceutical bulletin, 1969, vol. 17, p. 639 - 649