| abstract |
The present invention is formula (I): (Wherein X is -N =, -CH = and the like, W is -CH 2 -and the like, U is -S- and the like and R 1 and R 2 can each independently have a hydrogen atom, a halogen or a substituent; Alkyl, etc., R 3 is a hydrogen atom, etc., R 4 is each independently a hydrogen atom, halogen, etc., m is an integer of 0 to 2, Q is a single bond, etc., G is -C (= O)-, and D is Single bond, -NH- and the like, E is a cyclic quaternary ammonium group) It relates to a compound represented by a compound, an ester, or a protector in an amino group on a ring of a 7-position side chain thereof, or a pharmaceutically acceptable salt thereof or solvate thereof. |