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List of Chronobiotics



Name SMILES FDA Status Effects Targets Mechanisms Articles
C1CN(CCC1(C2=CC=C(C=C2)Cl)O)CCCC(=O)C3=CC=C(C=C3)F Approved affect expression of PER1 and CRY1 genes in human glioblastoma cell line mPer1 , CRY1-PER2 complex , CRY1 , CRY1 PER gene exspression modulation, CRY gene expression modulation Mokros, Ł., Karbownik, M.S., Nowakowska-Domagała, K., Szemraj, J., Wieteska, Ł., Woźniak, K., Witusik, A., Antczak, A. and Pietras, T., 2016. Haloperidol, but not olanzapine, may affect expression of PER1 and CRY1 genes in human glioblastoma cell line. Biological Rhythm Research, 47(6), pp.865-871.
CN(C)CCOC(C1=CC=CC=C1)C2=CC=CC=C2 Approved NREM sleep promotion in humans Histamine 1 receptor Histamine 1 blocker Wang, Y.Q., Takata, Y., Li, R., Zhang, Z., Zhang, M.Q., Urade, Y., Qu, W.M. and Huang, Z.L., 2015. Doxepin and diphenhydramine increased non-rapid eye movement sleep through blockade of histamine H1 receptors. Pharmacology Biochemistry and Behavior, 129, pp.56-64. , Morioka, E., Kanda, Y., Koizumi, H., Miyamoto, T. and Ikeda, M., 2018. Histamine regulates molecular clock oscillations in human retinal pigment epithelial cells via H1 receptors. Frontiers in endocrinology, 9, p.108.
CCC1=NN2C=CC3=C(C2=C1CCNC(=O)C)CCO3 none Circadian phase entrainment via MT1/MT2 receptor agonism, Circadian phase modulation via MT1/MT2 agonism, Phase shifting in humans (via MT1/MT2 receptor activation), Phase shift induction in mammals via MT1/MT2 receptor agonism, sleep-promoting action in freely moving cats MT1 MT1 receptor binding, MT2 receptor ligand Koike, T., Takai, T., Hoashi, Y., Nakayama, M., Kosugi, Y., Nakashima, M., Yoshikubo, S.I., Hirai, K. and Uchikawa, O., 2011. Synthesis of a novel series of tricyclic dihydrofuran derivatives: discovery of 8, 9-dihydrofuro [3, 2-c] pyrazolo [1, 5-a] pyridines as melatonin receptor (MT1/MT2) ligands. Journal of medicinal chemistry, 54(12), pp.4207-4218.
C1CN(CCN1CCOCCO)C2=NC3=CC=CC=C3SC4=CC=CC=C42 Approved improves sleep in insomnia mPer2 , mPer1 , CLOCK-BMAL1 Core clock modulation, Bmal1 Caruso, V., Geoffroy, P.A., Alfì, G., Miniati, M., Riemann, D., Gemignani, A. and Palagini, L., 2024. Effects of Mood Stabilizers on Sleep and Circadian Rhythms: A Systematic Review. Current Sleep Medicine Reports, 10(3), pp.329-357. , Endicott, J., Paulsson, B., Gustafsson, U., Schiöler, H. and Hassan, M., 2008. Quetiapine monotherapy in the treatment of depressive episodes of bipolar I and II disorder: improvements in quality of life and quality of sleep. Journal of affective disorders, 111(2-3), pp.306-319.
C1C2=C(C3=C(C=CC=N3)NC1=O)NC4=C2C=C(C=C4) Br none Period shortening in mammalian cells GSK-3α/β Highly selective, ATP-competitive inhibition of GSK-3 (both α and β isoforms), GSK‑3 Inhibition, Selective GSK-3β Inhibition:, inhibits glycogen synthase kinase-3β (GSK-3β) Miller, S. and Hirota, T., 2020. Pharmacological interventions to circadian clocks and their molecular bases. Journal of molecular biology, 432(12), pp.3498-3514.
CN1C2=C(C=C(C=C2)Cl)C(=NC(C1=O)O)C3=CC=CC=C3 Approved Sleep induction and jet lag symptom relief in humans GABAA receptors GABAergic system influence Heel, C., Brogden, R.N., Speight, T.M. and Avery, G.S., 1981. Temazepam: a review of its pharmacological properties and therapeutic efficacy as an hypnotic. Drugs, 21, pp.321-340.
CC(C)C[C@@H](C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)O)NC(=O)[C@H](CCSC)NC=O Not approved chemotaxis stimulation, activates G protein-coupled receptors, specifically FPR1, actin polymerization, oxidative burst, Affects circadia nchemotaxis and phagocytosis, fMLP-mediated activation of human eosinophils is influenced by the circadian clock FPR1 , FPR2 FPR2 full agonist, FPR1 full agonist Baumann, A., Feilhauer, K., Bischoff, S.C., Froy, O. and Lorentz, A., 2015. IgE-dependent activation of human mast cells and fMLP-mediated activation of human eosinophils is controlled by the circadian clock. Molecular immunology, 64(1), pp.76-81.
C1OC2=C(O1)C=C(C=C2)C3=C(NC(=N3)C4=CC=C(C=C4)C(=O)N)C5=CC=CC=N5 none Phase shift via Dec1 induction in mammalian cells Dec1 gene expression Activation of activin receptor-like kinase (ALK), by an immediate-early induction of Dec1 Kon, N., Hirota, T., Kawamoto, T., Kato, Y., Tsubota, T. and Fukada, Y., 2008. Activation of TGF-β/activin signalling resets the circadian clock through rapid induction of Dec1 transcripts. Nature cell biology, 10(12), pp.1463-1469.
CC1=NC=C(N1CCO)[N+](=O)[O-] None Circadian disruption in skeletal muscle and pineal gland (in animals) Microbiota Melatonin synthesis alteration Manickam, R., Oh, H.Y.P., Tan, C.K., Paramalingam, E. and Wahli, W., 2018. Metronidazole causes skeletal muscle atrophy and modulates muscle chronometabolism. International journal of molecular sciences, 19(8), p.2418.
C1=CC(=C(C=C1F)F)C(CN2C=NC=N2)(CN3C=NC=N3)O Approved Discrupts temporal organization in Candida albicans Lanosterol 14-α-demethylase (fungal CYP51) Inhibits the fungal enzyme lanosterol 14-α-demethylase (CYP51) Nikolenko, M.V., TKh, T. and Paromova, Y.I., 2015. EFFECT OF FLUCONAZOLE ON TEMPORAL ORGANIZATION OF BIOLOGICAL PROPERTIES OF CANDIDA ALBICANS. Zhurnal Mikrobiologii, Epidemiologii i Immunobiologii, (4), pp.30-35.
CCCC(=O)NCCC1=C2C3=CC=CC=C3CCCN2C4=C1C=C(C=C4)OC none Phase shift disruption in mammals via MT1/MT2 receptor antagonism, MT2 antagonist; disrupts melatonin signaling (in human receptor models), Normalization of circadian rhythms in elderly, blind and people with social jet lag. Melatonin receptor , MT1 , MT2 MT1 antagonist, Melatonin receptor binding, antagonist of melatonin receptors, MT2 receptor antagonist, MT1 receptor binding, MT2 receptor ligand Faust, R., Garratt, P.J., Jones, R., Yeh, L.K., Tsotinis, A., Panoussopoulou, M., Calogeropoulou, T., Teh, M.T. and Sugden, D., 2000. Mapping the melatonin receptor. 6. Melatonin agonists and antagonists derived from 6 H-isoindolo [2, 1-a] indoles, 5, 6-dihydroindolo [2, 1-a] isoquinolines, and 6, 7-dihydro-5 H-benzo [c] azepino [2, 1-a] indoles. Journal of medicinal chemistry, 43(6), pp.1050-1061. , Sugden, D., Yeh, L.K. and Teh, M.T., 1999. Design of subtype selective melatonin receptor agonists and antagonists. Reproduction Nutrition Development, 39(3), pp.335-344.
C1C2=NN=CN2C3=C(C=C(C=C3)Cl)C(=N1)C4=CC=CC=C4 Approved sleep modulation in humans GABAA receptors GABAergic system influence Vogel, G.W. and Morris, D., 1992. The effects of estazolam on sleep, performance, and memory: a long‐term sleep laboratory study of elderly insomniacs. The Journal of Clinical Pharmacology, 32(7), pp.647-651.
C1=CC=C(C(=C1)C(=O)O)O none Period shortening in plants Unknown | Multiple plant targets Plastoquinone interaction Manickam, R., Oh, H.Y.P., Tan, C.K., Paramalingam, E. and Wahli, W., 2018. Metronidazole causes skeletal muscle atrophy and modulates muscle chronometabolism. International journal of molecular sciences, 19(8), p.2418.
CC1C2C(C3C(C(=O)C(=C(C3(C(=O)C2=C(C4=C1C=CC=C4O)O)O)O)C(=O)N)N(C)C)O Approved restores normal circadian rhythms, may cause daytime sleepiness, rescues recognition memory and circadian motor rhythmicity but does not prevent terminal disease in fatal familial insomnia mice Unknown Central clock rescue via microbial community alteration Lavigna, G., Masone, A., Bouybayoune, I., Bertani, I., Lucchetti, J., Gobbi, M., Porcu, L., Zordan, S., Rigamonti, M., Imeri, L. and Restelli, E., 2021. Doxycycline rescues recognition memory and circadian motor rhythmicity but does not prevent terminal disease in fatal familial insomnia mice. Neurobiology of Disease, 158, p.105455.
CC1=C(C=C(N1CCCN2CCOCC2)C3=CC=CC=C3)C(=O)NC4=CC=CC(=C4)C(F)(F)F Not approved potential circadian entrainment via TRPV4 in eye (mammals) TRPV4 Channel This inhibition of TRPV4-mediated signaling can affect downstream pathways involved in the regulation of the circadian clock. Li, W., Xu, Y., Liu, Z., Shi, M., Zhang, Y., Deng, Y., Zhong, X., Chen, L., He, J., Zeng, J. and Luo, M., 2021. TRPV4 inhibitor HC067047 produces antidepressant-like effect in LPS-induced depression mouse model. Neuropharmacology, 201, p.108834.
CCC(C)C1(C(=O)NC(=O)NC1=O)CC Approved Indirect circadian disruption via altered sleep–wake timing (in humans) GABAA receptors GABAergic system influence Prinz, P.N., Vitiello, M.V., Raskind, M.A. and Thorpy, M.J., 1990. Sleep disorders and aging. New England Journal of Medicine, 323(8), pp.520-526.
C1=CC=NC(=C1)NS(=O)(=O)C2=CC=C(C=C2)N=NC3=CC(=C(C=C3)O)C(=O)O Approved circadian clock mediated antitumor effect REV-ERBα Core clock suppression Okazaki, F., Matsunaga, N., Hamamura, K., Suzuki, K., Nakao, T., Okazaki, H., Kutsukake, M., Fukumori, S., Tsuji, Y. and To, H., 2017. Administering xCT inhibitors based on circadian clock improves antitumor effects. Cancer research, 77(23), pp.6603-6613.
CC(C)(C[C@H]1CN(C2=C(O1)C=CC(=C2)C3=CC(=CC(=C3)F)OC(F)F)S(=O)(=O)C4=CC=CC(=C4)C(F)(F)F)C(=O)O Not approved Circadian modulation via RORγ activation in human immune cells RORB , ROR gamma ROR, RORγ binding Mahalingam, D., Wang, J.S., Hamilton, E.P., Sarantopoulos, J., Nemunaitis, J., Weems, G., Carter, L., Hu, X., Schreeder, M. and Wilkins, H.J., 2019. Phase 1 open-label, multicenter study of first-in-class RORγ agonist LYC-55716 (cintirorgon): safety, tolerability, and preliminary evidence of antitumor activity. Clinical Cancer Research, 25(12), pp.3508-3516.
C1=NC(=C2C(=N1)N(C=N2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO)O)O)N Approved Phase shift modulation and period regulation via adenosine receptor signaling (in mice and mammals) Adenosine A1, A2A, A2B, and A3 Receptors Activation of Adenosine Receptors Jagannath, A., Varga, N., Dallmann, R., Rando, G., Gosselin, P., Ebrahimjee, F., Taylor, L., Mosneagu, D., Stefaniak, J., Walsh, S. and Palumaa, T., 2021. Adenosine integrates light and sleep signalling for the regulation of circadian timing in mice. Nature communications, 12(1), p.2113.
CCN(C1=CC=CC(=C1)C2=CC=NC3=C(C=NN23)C#N)C(=O)C Approved Affects melatonin synthsis, increases melatonin synthesis GABAA receptors GABA A receptor binding, GABAergic system influence Morera, A.L., Abreu-Gonzalez, P. and Henry, M., 2009. Zaleplon increases nocturnal melatonin secretion in humans. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 33(6), pp.1013-1016.
C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)O)C)C)[C@@H]2[C@H]1C)C)C(=O)O Not approved Modulation of clock gene expression and metabolic rhythm regulation in liver (in mammals) ROR gamma PTEN, ROCK, p53 Kojetin, D.J. and Burris, T.P., 2014. REV-ERB and ROR nuclear receptors as drug targets. Nature reviews Drug discovery, 13(3), pp.197-216. , Kwon, E.Y., Shin, S.K. and Choi, M.S., 2018. Ursolic acid attenuates hepatic steatosis, fibrosis, and insulin resistance by modulating the circadian rhythm pathway in diet-induced obese mice. Nutrients, 10(11), p.1719. , Zahran, E.M., Mohamad, S.A., Elsayed, M.M., Hisham, M., Maher, S.A., Abdelmohsen, U.R., Elrehany, M., Desoukey, S.Y. and Kamel, M.S., 2024. Ursolic acid inhibits NF-κB signaling and attenuates MMP-9/TIMP-1 in progressive osteoarthritis: a network pharmacology-based analysis. RSC advances, 14(26), pp.18296-18310.
CC1=CC(=NO1)NS(=O)(=O)C2=CC=C(C=C2)N Approved Circadian phase shift and dysrhythmia in eclosion rhythm in Drosophila melanogaster mPer2 , mPer1 , CRY1-PER2 complex , CRY1 , CLOCK-BMAL1 Core clock suppression Yu, Z., Shen, J., Li, Z., Yao, J., Li, W., Xue, L., Vandenberg, L.N. and Yin, D., 2020. Obesogenic effect of sulfamethoxazole on Drosophila melanogaster with simultaneous disturbances on eclosion rhythm, glucolipid metabolism, and microbiota. Environmental Science & Technology, 54(9), pp.5667-5675.
CCCC1CC(N(C1)C)C(=O)NC(C2C(C(C(C(O2)SC)O)O)O)C(C)O not approved alone caused a long circadian period. However, the degree of lengthening was less than with Fe deficiency alone Fe deficiency Unknown Chen, Y.Y., Wang, Y., Shin, L.J., Wu, J.F., Shanmugam, V., Tsednee, M., Lo, J.C., Chen, C.C., Wu, S.H. and Yeh, K.C., 2013. Iron is involved in the maintenance of circadian period length in Arabidopsis. Plant physiology, 161(3), pp.1409-1420.
C1=CC=C(C=C1)C(C2=CC=CC=C2)C(=O)N[C@H](CCCN=C(N)N)C(=O)NCC3=CC=C(C=C3)CNC(=O)N.C(=O)(C(F)(F)F)O none Phase shift via Y1 receptor antagonism in rodents Neuropeptide Y Y1 receptor Neuropeptide Y1 receptor binding Cohen, S., Vainer, E., Matar, M.A., Kozlovsky, N., Kaplan, Z., Zohar, J., Mathé, A.A. and Cohen, H., 2015. Diurnal fluctuations in HPA and neuropeptide Y-ergic systems underlie differences in vulnerability to traumatic stress responses at different zeitgeber times. Neuropsychopharmacology, 40(3), pp.774-790.
CC1=C(C(=CC=C1)C(C)C2=CN=CN2)C Approved Altered expression of clock genes in mice mPer2 , mPer1 , CRY1-PER2 complex Core clock modulation Huang, X., Lin, D., Sun, Y., Wu, A. and Wei, C., 2021. Effect of dexmedetomidine on postoperative sleep quality: a systematic review. Drug design, development and therapy, pp.2161-2170.