| 摘要 |
Novel compounds of the following formula are disclosed: <CHEM> wherein x and y are either 0 or 2, provided that x = 0, if y = 2 and x = 2, if y = 0 R = CH3(CH2)n, where n represents an integer from 3 to 42; b is 0 or 1, wherein if b = 0, Q represents a hydrogen atom, and if b = 1, Q represents a CH2-group, and; a = 0 or 1, wherein if a = 0, Z represents a hydrogen atom, and if a = 1, Z represents a CH2-group; z is 0 or 1; R1, R2 and R3 independently represent hydrogen or an alkyl or alkylene group containing from 1 to about 40 carbon atoms; and X is an anion. |
