| http://www.w3.org/ns/prov#value | - 4; R2 is a C8 to C18 alkyl, R3 and R4 are each independently hydrogen, lower alkyl or R3 and R4 together with the nitrogen atom to which they are attached form a 5- or 6-membered heterocyclic ring; n is 0 or 1, and q is 1 or 2, wherein when n is 0 and R1 is NR3R4, then NR3R4 is para-substituted. 2.
|
