The invention relates to compounds of formula (I) or a salt or solvate thereof, wherein: x represents 0 or 1; y represents 0 or 1; R1 and R2 independently represent -C1-9 alkyleneC1-6 fluoroalkyl, which fluoroalkyl moiety contains at least 1 fluorine atom and not more than 3 consecutive perfluorocarbon atoms and wherein said R1 and/or R2 moiety is optionally interrupted by an ether link, processes for their preparation, use of said compounds in the preparation of pharmaceutical aerosol formulations and said formulations.
申请公布号
WO03068722(A1)
申请公布日期
2003.08.21
申请号
WO2003GB00547
申请日期
2003.02.12
申请人
GLAXO GROUP LIMITED;LOOKER, BRIAN, EDGAR;LUNNISS, CHRISTOPHER, JAMES;REDGRAVE, ALISON