Novel compounds with high therapeutic index

A compound or the pharmaceutically acceptable salt thereof, wherein a drug having a functionality selected from the group consisting of hydroxy, amino, carboxy or acylating derivative of said carboxy group is bonded to an amino acid wherein the drug is selected from the consisting of 5-HETE, Abacavir, Acarbose, Acebutolol, Acetaminophen, Adefovir, Albuterol, Alfaprostol acid, Amlodipine, Amoxicillin, Amphotericin B, Amprenavir, Arachidonic Acid, Aspirin, Atenolol, Atorvastatin, Atropine, Atovaquone, Baclofen, Benazeprilat, Beraprost, Bexarotene, Bicalutamide, Biperiden, Bisoprolol, Bitolterol, Brinzolamide, Bupivacaine, Buprenorphine, Bupropion, Butorphanol, Candesartan, Capacitabine, Captopril, Carbidopa, Carboprost, Carnitine, Carteolol, Carvedilol, Cefdinir, Cefditoren, Ceftazimide, Cefpodoxime, Cefuroxime, Cerivastatin, Chloramphenicol, Cisapride, Clofibrate, Cloprostenol, Clorazepic Acid, Cycloserine, Cyclosporine, Cytarabine, Dextroamphetamine, Diclofenac, Didanosine, Divalproex, Efavirenz, Enalaprilat, Ephedrine, Eplerenone, Eprosartan, Esmolol, Estramustine, Ethambutol, Ethchlorvynol, Ethotoin, Etidocaine, Etoposide, Ezetimibe, Famciclovir, Fenofibrate, Fenoprofen, Fenprostalene acid, Fibric acid derivatives, Finasteride, Flavoxate, Fluprostenol, Fluoxetine, Flurbiprofen, Fluticasone, Fluvastatin, Fosinoprilat, Frovatriptan, Fulvestrant, Gemprost Acid, Goserelin, Hydroxychloroquine, Hydroxyzine, Hyoscyamine, Ibuprofen, Ibutilide, Indapamide, Indinavir, Ipratropium, Irinotecan, Isosorbide, Isradipine, Ketoprofen, Ketorolac, Labetalol, Lamivudine, Lansoprazole, Latanoprost Acid, Leukotrienes (LTA4, LTB4, LTC4, LTD4 and LTE4) Leuprolide, Levobunolol, Levodopa, Levorphanol, Limaprost, γ-Linolenic Acid, Liothyronine, Lisinopril, Lopinavir, Lorazepam, Lovastatin, Medroxyprogesterone, Mefloquine, Megestrol, Mephobarbital, Mepivacaine, Metaproterenol, Metformin, Methamphetamine, Methohexital, Methotrexate, Methylprednisolone, Metolazone, Metoprolol, Mexiletine, Miglitol, Moexiprilat, Mometasone, Montelukast, Mycophenolate Acid, Nadolol, Nalbuphine, Naproxen, Naratriptan, Nateglinide, Nelfinavir, Niacin, Nicotinic Acid, Nicotinamide, Nicardipine, Nimidipine, Nisoldipine, Norgestimate, Octreotide, Ofloxacin, Olmesartan, Omeprazole, Ozagrel, Paclitaxel, Pantothenic Acid, Paroxetine, Penbutolol, Penciclovir, Pentazocine, Pentobarbital, Perindoprilat, Phenylephrine, Phenylpropanolamine, Pindolol, Pioglitazone, Pirbuterol, Pramipexole, Pravastatin, Propafenone, Propofol, Propoxyphene, Propranolol, Prostacyclin, Prostaglandins (E1, E2 and F2α), Prostanoic Acid, Pseudoephedrine, Quinacrine, Quinaprilat, Quinethazone, Quinidine, Quinine, Ramiprilat, Reboxetine, Repaglinide, Ribavirin, Ritonavir, Ropivacaine, Rosaprostol, Rosuvastatin, Salmeterol, Salsalate, Sertraline, Simavastatin, Sotalol, Sulfa Drugs, Sulfasalazine, Sumitriptan, Tacrolimus, Tazorotene, Telmesartan, Tenofovir, Terbutaline, Tiagabine, Timolol, Tirofiban, Tocainide, Tramadol, Trandolaprilat, Tranylcypromine, Treprostinil, Triamcinolone, Trimoprostil, Troglitazone, Unoprostone, Valproic Acid, Valsartan, Venlafaxine, Vidarabine, Warfarin, Zalcitabine, Zidovudine, Zileuton and Zolmitriptan or a pharmaceutically acceptable salt of any of said drug and wherein the amino acid is L-Hyp, L-Ser, L-Tyr, L-Lys, L-Leu, L-Ile, Gly, L-Asp, L-Glu, L-Met, L-Ala, L-Val, L-Pro, L-His, L-Nor, L-Arg, L-Phe, L-Trp, L-Car, L-Ort, GABA, L-Cys, or Thr.