Patent ID: 8222407

Claim:
A mutilin compound represented by the following formula (1): wherein R 1 represents a lower alkenyl group, a thiol group or a lower alkylthio group, A represents the following chemical formula: (wherein R 2 represents a hydrogen atom or a lower alkyl group which may be substituted), the ring B containing a nitrogen atom represents the following chemical formula: (wherein m and n represent 1 ), R 3 represents a hydrogen atom or a fluorine atom, R 4 represents CH, N, or the formula: C—X or COR 7 (wherein X represents a halogen atom, and R 7 represents a hydrogen atom or a lower alkyl group which may be substituted), R 5 represents a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted, a cyclopropyl group which may be substituted, an unsubstituted cyclopropylmethyl group, or a phenyl group which may be substituted, or R 5 and R 7 may be combined to form a ring, and in this case, a lower alkyl group, which may be substituted, may be substituted at an arbitrary carbon atom of the ring, and R 6 represents a hydrogen atom, a lower alkyl group which may be substituted, or a boric acid group which may be substituted, or a pharmaceutically acceptable addition salt thereof.