| PAMAM |
ester/succinic acid |
in-vitro |
[161] |
| ester/FITC-folic acid |
in-vitro |
[162] |
| Heparin |
ester/valine, leucine, phenylalanine |
in-vivo |
[163] |
| ester/folic acid |
in-vivo |
[165] |
| PGG |
ester |
in-vivo |
[166-168] |
| ester/PEG-RGD |
in-vitro |
[169] |
| HA |
ester/valine, leucine, phenylalanine |
in-vitro |
[164] |
| HPMA |
ester/Gly-Phe-Leu-Gly |
phase I/discontinued |
[170] |
| PG |
ester |
phase III |
[171, 172] |
|
