J-113,397 is an opioiddrug which was the first compound found to be a highly selective antagonist for the nociceptin receptor, also known as the ORL-1 receptor.[1][2] It is several hundred times selective for the ORL-1 receptor over other opioid receptors,[3][4] and its effects in animals include preventing the development of tolerance to morphine,[5] the prevention of hyperalgesia induced by intracerebroventricular administration of nociceptin (orphanin FQ),[6] as well as the stimulation of dopamine release in the striatum,[7] which increases the rewarding effects of cocaine,[8] but may have clinical application in the treatment of Parkinson's disease.[9][10][11]
Condensation between 1-Benzyl-3-methoxycarbonyl-4-piperidone [57611-47-9] (1) and O-Phenylenediamine (2) gives CID:16726310 (3). Reaction with boc anhydride followed by treatment with trifluoroacetic acid gives CID:16726358 (4). Reaction with iodoethane in the presence of base alkylates the urea nitrogen giving CID:16726359 (5). Reduction of the enamine by treatment with magnesium metal in methanol solvent occurs to give predominantly the trans isomer, CID:16726360 (6). Catalytic removal of the benzyl group gives CID:16726362 (7). Reductive amination with Cyclooctanecarbaldehyde [6688-11-5] (7) gives CID:16726364 (9). Lastly, reduction of the ester with lithium aluminium hydride completed the synthesis of J-113397 (10).
^Kawamoto H, Ozaki S, Itoh Y, Miyaji M, Arai S, Nakashima H, et al. (December 1999). "Discovery of the first potent and selective small molecule opioid receptor-like (ORL1) antagonist: 1-[(3R,4R)-1-cyclooctylmethyl-3- hydroxymethyl-4-piperidyl]-3-ethyl-1, 3-dihydro-2H-benzimidazol-2-one (J-113397)". Journal of Medicinal Chemistry. 42 (25): 5061–3. doi:10.1021/jm990517p. PMID10602690.
^De Risi C, Piero Pollini G, Trapella C, Peretto I, Ronzoni S, Giardina GA (July 2001). "A new synthetic approach to 1-[(3R,4R)-1-cyclooctylmethyl-3-hydroxymethyl-4-piperidyl]-3-ethyl-1,3-dihydro-benzimidazol-2-one(J-113397), the first non-peptide ORL-1 receptor antagonist". Bioorganic & Medicinal Chemistry. 9 (7): 1871–7. doi:10.1016/s0968-0896(01)00085-2. PMID11425589.
^Ozaki S, Kawamoto H, Itoh Y, Miyaji M, Iwasawa Y, Ohta H (January 2000). "A potent and highly selective nonpeptidyl nociceptin/orphanin FQ receptor (ORL1) antagonist: J-113397". European Journal of Pharmacology. 387 (3): R17-8. doi:10.1016/s0014-2999(99)00822-5. PMID10650183.
^Chung S, Pohl S, Zeng J, Civelli O, Reinscheid RK (July 2006). "Endogenous orphanin FQ/nociceptin is involved in the development of morphine tolerance". The Journal of Pharmacology and Experimental Therapeutics. 318 (1): 262–7. doi:10.1124/jpet.106.103960. PMID16595734. S2CID15569763.
^Ozaki S, Kawamoto H, Itoh Y, Miyaji M, Azuma T, Ichikawa D, et al. (August 2000). "In vitro and in vivo pharmacological characterization of J-113397, a potent and selective non-peptidyl ORL1 receptor antagonist". European Journal of Pharmacology. 402 (1–2): 45–53. doi:10.1016/s0014-2999(00)00520-3. PMID10940356.
^Visanji NP, de Bie RM, Johnston TH, McCreary AC, Brotchie JM, Fox SH (October 2008). "The nociceptin/orphanin FQ (NOP) receptor antagonist J-113397 enhances the effects of levodopa in the MPTP-lesioned nonhuman primate model of Parkinson's disease". Movement Disorders. 23 (13): 1922–5. doi:10.1002/mds.22086. PMID18759357. S2CID46116472.
^Sulima, A., Folk, J., Jacobson, A., Rice, K. (2 May 2007). "A New Approach to the Synthesis of the Nonpeptide NOP Receptor Antagonist J-113397". Synthesis. 2007 (10): 1547–1553. doi:10.1055/s-2007-966037.