Active agents and their oligomers and polymers

A compound according to formula (I):

• wherein
• each D is the same or different and is a therapeutic agent selected from 4-sulfanilamidosalicylic acid, amoxicillin, apalcillin, apicycline, aspoxicillin, biapenem, cefadroxil, cefamandole, cefatrizine, cefbuperazone, cefdinir, cefonicid, cefoperazone, cefpiramide, cefprozil, flomoxef, imipenem, lucensomycin, lymecycline, meropenem, moxalactam, nadifloxacin, panipenem, ritipenem, salazosulfadimidine, sulfaloxic acid, carzinophillin A, denopterin, mycophenolic acid, streptonigrin, doxorubicin, paclitaxel, gemcitabine, mycophenolic acid, diflunisal, fendosal, gentisic acid, mesalamine, salicylic acid, salsalate, and sulfasalazine,
• R1 is selected from the group consisting of [(CH2)xO]y(CH2)z—, —(CH2)y—, —[CH═CH—O]y(CH2)z—, —[(CH═CH—CH2—O]y(CH2)z—, [CH2—CH═CH—O]y(CH2)z—, —[(CH2)xO]y(CH═CH)—,
• wherein w is 1 or 2,
• x is 2 or 3, and
• y is equal to an integer from 1 to 10, from 1 to 4, or from 1 to 3,
• z is equal to 1 or 2, and
• the carbon atoms of R1 may be optionally substituted with substituents selected from the group consisting of C1 to C12 alkyl, C1 to C12 alkoxy, C3 to C12 cycloalkyl, C3 to C12 cycloalkoxy, C1 to C12 alkanoyl, C1 to C12 alkanoyloxy, C1 to C12 alkoxy carbonyl, C1 to C12 alkylthio, azido, cyano, nitro, fluoro, chloro, bromo, iodo, hydroxy, oxo, carboxy, aryl, aryloxy, heteroaryl, and heteroaryloxy;
• each X is the same or different and is selected from the group consisting of —O—, —NR2—, —S—, —SO—, and —SO2—,
• wherein R2 is an alkyl group of 1 to 12 carbon atoms.