Phospholipid derivatives, their production and use
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0225129A1
公开(公告)日:1987-06-10
Phospholipid derivatives of the formula:
wherein R¹ is a higher alkyl, acylmethyl or alkylcarbamoyl group which may be substituted by cycloalkyl; R² is a lower alkyl which may be substituted by carboxy, formyl or lower acyl, a carbamcyl or thiocarbamoyl group which is substituted by lower alkyl, or an acetoacetyl group; R³, R⁴ and R⁵ are independently hydrogen or lower alkyl, or
represents a cyclic ammonio group; and n represents an integer of 8 to 14, and salts thereof have antitumor activity and platelet activating factor inhibitory activity and are useful as antitumor agents.
Phospholipid derivatives of the formula: ##STR1## wherein R.sup.1 is a higher alkyl, acylmethyl or alkylcarbamoyl group which may be substituted by cycloalkyl; R.sup.2 is a lower alkyl which may be substituted by carboxy, formyl or lower acyl, a carbamoyl or thiocarbamoyl group which is substituted by lower alkyl, or an acetoacetyl group; R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen or lower alkyl, or ##STR2## represents a cyclic ammonio group; and n represents an integer of 8 to 14, and salts thereof have antitumor activity.