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Maeda K, Ohrui S, Tokuda A, Nagumo Y, Yamamoto N, Tanimura R, Saitoh T, Kutsumura N, Nagase H. Unexpected Rearrangement Reactions of the 14-Aminonaltrexone Skeleton. Org Lett 2023; 25:3407-3411. [PMID: 37154730 DOI: 10.1021/acs.orglett.3c00956] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The reaction of 14-aminonaltrexone with acetic anhydride was found to produce a range of different novel compounds between the free compound and its hydrochloride. The hydrochloride produced a compound with an acetylacetone moiety, whereas the free form produced a compound with a pyranopyridine moiety. Efforts to isolate reaction intermediates and density functional theory calculations have elucidated those formation mechanisms with both bearing the novel morphinan-type skeleton. Furthermore, a derivative with the acetylacetone moiety showed binding to opioid receptors.
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Affiliation(s)
- Kenta Maeda
- Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Sayaka Ohrui
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Akihisa Tokuda
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yasuyuki Nagumo
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Naoshi Yamamoto
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Ryuji Tanimura
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 10-1, Tebiro 6-choume, Kamakura, Kanagawa 248-8555, Japan
| | - Tsuyoshi Saitoh
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Noriki Kutsumura
- Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiroshi Nagase
- Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Saitoh T, Seki K, Nakajima R, Yamamoto N, Kutsumura N, Nagumo Y, Irukayama-Tomobe Y, Ogawa Y, Ishikawa Y, Yanagisawa M, Nagase H. Essential structure of orexin 1 receptor antagonist YNT-707, part V: Structure-activity relationship study of the substituents on the 17-amino group. Bioorg Med Chem Lett 2020; 30:126893. [PMID: 31879208 DOI: 10.1016/j.bmcl.2019.126893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 12/31/2022]
Abstract
The morphinan-type orexin 1 receptor (OX1R) antagonists such as YNT-707 (2) and YNT-1310 (3) show potent and extremely high selective antagonistic activity against OX1R. In the course of our studies of the essential structure of 2, we identified new scaffolds by simplification of the morphinan skeleton. However, the new chemical entities carrying the D-ring removed scaffold showed insufficient activity. To improve the activity of these derivatives, we investigated the effect of substituents mainly focused on the 17-nitrogen group. The 17-N-substituted derivatives, as well as the cyclic derivatives, were synthesized and examined the OX1R antagonistic activity. The assay results showed the interesting relationship between the OX1R antagonistic activity and the substituents on the 17-nitrogen: the antagonistic activity was increased as the bulkiness of 17-substituents increased. Finally, the 17-N-Boc derivative 14a showed the most potent OX1R antagonistic activity (Ki = 14.8 nM).
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Affiliation(s)
- Tsuyoshi Saitoh
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Kazunori Seki
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Ryo Nakajima
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Naoshi Yamamoto
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Noriki Kutsumura
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yasuyuki Nagumo
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoko Irukayama-Tomobe
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yasuhiro Ogawa
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yukiko Ishikawa
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan; R&D Center for Frontiers of Mirai in Policy and Technology (F-MIRAI), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan; Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
| | - Hiroshi Nagase
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan; Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
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Essential structure of orexin 1 receptor antagonist YNT-707, Part IV: The role of D-ring in 4,5-epoxymorphinan on the orexin 1 receptor antagonistic activity. Bioorg Med Chem Lett 2019; 29:2655-2658. [PMID: 31375290 DOI: 10.1016/j.bmcl.2019.07.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022]
Abstract
The orexin 1 receptor (OX1R) antagonists carrying a morphinan skeleton such as YNT-707 (2) and YNT-1310 (3) showed potent and extremely high selective antagonistic activity against OX1R. In the course of our study of the essential structure of YNT-707 for high binding affinity against OX1R, we prepared derivatives of 2 without the D- and 4,5-epoxy rings to clarify the roles of these structural determinants toward OX1R antagonistic activity. The D- and 4,5-epoxy rings played important roles for the active orientation of the 17-sulfonamide and 6-amide side chains. Finally, we identified the simple structure required for selective OX1R antagonistic activity in the complex morphinan skeleton, which is expected to be a useful scaffold for further design of OX1R ligands.
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Lai Y, Zhang N, Zhang Y, Chen JH, Yang Z. Asymmetric Total Syntheses of Insulicolide A, 14-O-Acetylinsulicolide A, 6β,9α-Dihydroxy-14-p-nitrobenzoylcinnamolide, and 7α,14-Dihydroxy-6β-p-nitrobenzoylconfertifolin. Org Lett 2018; 20:4298-4301. [DOI: 10.1021/acs.orglett.8b01733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yang Lai
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Nan Zhang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yi Zhang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Jia-Hua Chen
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Zhen Yang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
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Kutsumura N, Koyama Y, Suzuki Y, Tominaga KI, Yamamoto N, Saitoh T, Nagumo Y, Nagase H. Favorskii-Type Rearrangement of the 4,5-Epoxymorphinan Skeleton. Org Lett 2018. [PMID: 29513016 DOI: 10.1021/acs.orglett.8b00288] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aldol condensation of naltrexone with various aryl aldehydes gives the corresponding 7-benzylidenenaltrexone derivatives in high yields. However, novel C-ring-contracted morphinan compounds were produced when 2-pyridinecarboxaldehyde or its related analogues were used as a coupling partner. The key structural feature was the existence of the tetrahydrofuran ring (4,5-epoxy ring, E-ring) of the morphinan skeleton. The time-resolved in situ IR spectroscopy of the reaction system indicated the short-lived absorption of the distorted cyclopropanone intermediate.
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Affiliation(s)
- Noriki Kutsumura
- International Institute for Integrative Sleep Medicine (WPI-IIIS) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8575 , Japan
| | - Yasuaki Koyama
- Graduate School of Pure and Applied Sciences , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8571 , Japan
| | - Yuko Suzuki
- Graduate School of Pure and Applied Sciences , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8571 , Japan
| | - Ken-Ichi Tominaga
- National Institute of Advanced Industrial Science and Technology (AIST) , Central 5 1-1-1 Higashi , Tsukuba , Ibaraki 305-8565 , Japan
| | - Naoshi Yamamoto
- International Institute for Integrative Sleep Medicine (WPI-IIIS) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8575 , Japan
| | - Tsuyoshi Saitoh
- International Institute for Integrative Sleep Medicine (WPI-IIIS) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8575 , Japan
| | - Yasuyuki Nagumo
- International Institute for Integrative Sleep Medicine (WPI-IIIS) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8575 , Japan
| | - Hiroshi Nagase
- International Institute for Integrative Sleep Medicine (WPI-IIIS) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8575 , Japan.,Graduate School of Pure and Applied Sciences , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8571 , Japan
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6
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Fang L, Lyu Q, Lu C, Li H, Liu S, Han L. Synthesis of Chiral Dihydrobenzofurans and Phthalides by Asymmetric Transfer HydrogenationviaDynamic Kinetic Resolution: A Strategy for Total Synthesis of Daldinins A, B, and C and Concentricolide. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600333] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lizhen Fang
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
| | - Qinghua Lyu
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
| | - Chenjuan Lu
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
| | - Huanhuan Li
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
| | - Saisai Liu
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
| | - Lili Han
- School of Pharmacy; Xinxiang Medical University; 601 East Jinsui Avenue Xinxiang, Henan 453003 People's Republic of China
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Gualandi A, Savoia D. Substrate induced diastereoselective hydrogenation/reduction of arenes and heteroarenes. RSC Adv 2016. [DOI: 10.1039/c5ra23908g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nature/structure of the (hetero)arene, substituent and reducing agent affect the diastereoselectivity.
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Affiliation(s)
- A. Gualandi
- Dipartimento di Chimica “G. Ciamician”
- Alma Mater Studiorum-Università di Bologna
- 40126 Bologna
- Italy
| | - D. Savoia
- Dipartimento di Chimica “G. Ciamician”
- Alma Mater Studiorum-Università di Bologna
- 40126 Bologna
- Italy
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Morrison KC, Hergenrother PJ. Natural products as starting points for the synthesis of complex and diverse compounds. Nat Prod Rep 2014; 31:6-14. [PMID: 24219884 DOI: 10.1039/c3np70063a] [Citation(s) in RCA: 160] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covering: up to 2013. Natural products and their derivatives are used as treatments for numerous diseases. Many of these compounds are structurally complex, possessing a high percentage of sp(3) hybridized carbons and multiple stereogenic centers. Due to the difficulties associated with the isolation of large numbers of novel natural products, lead discovery efforts over the last two decades have shifted toward the screening of less structurally complex synthetic compounds. While there have been many success stories from these campaigns, the modulation of certain biological targets (e.g. protein-protein interactions) and disease areas (e.g. antibacterials) often require complex molecules. Thus, there is considerable interest in the development of strategies to construct large collections of compounds that mimic the complexity of natural products. Several of these strategies focus on the conversion of simple starting materials to value-added products and have been reviewed elsewhere. Herein we review the use of natural products as starting points for the generation of complex compounds, discussing both early ad hoc efforts and a more recent systematization of this approach.
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Affiliation(s)
- Karen C Morrison
- Department of Chemistry, University of Illinois, Urbana, IL 61801.
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Zhang G, Wu G, Zhu T, Kurtán T, Mándi A, Jiao J, Li J, Qi X, Gu Q, Li D. Meroterpenoids with diverse ring systems from the sponge-associated fungus Alternaria sp. JJY-32. JOURNAL OF NATURAL PRODUCTS 2013; 76:1946-1957. [PMID: 24128115 DOI: 10.1021/np4005757] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Fifteen meroterpenoids (1-15) with diverse ring systems including an unprecedented oxaspiro[5.5]nonane-fused cyclohexenone (1), hydrogenated benzofurans (2-5), hydrogenated chromans (6, 7), hydrogenated cyclopenta[b]chromans (8-11), and four monocyclic structures (12-15) were isolated from the sponge-associated fungus Alternaria sp. JJY-32. The structures were elucidated by detailed spectroscopic analysis, including 2D NMR and electronic circular dichroism (ECD) calculations, and assisted by chemical derivatizations. On the basis of supplementation experiments with specific enzyme inhibitors and putative precursors, a shikimate-isoprenoid hybrid biosynthetic pathway is proposed. The NF-κB inhibitory activities of 1-15 were tested, and all of them, except 6 and 7 (IC50 > 100 μM), showed activities with IC50 values ranging from 39 to 85 μM in RAW264.7 cells.
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Affiliation(s)
- Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
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Abstract
This paper is the thirty-third consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2010 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, USA.
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Nagase H, Imaide S, Tomatsu M, Hirayama S, Nemoto T, Sato N, Nakajima M, Nakao K, Mochizuki H, Gouda H, Hirono S, Fujii H. Investigation of Beckett–Casy model 3: Synthesis of novel naltrexone derivatives with contracted and expanded D-rings and their pharmacology. Bioorg Med Chem Lett 2010; 20:3801-4. [DOI: 10.1016/j.bmcl.2010.04.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 04/05/2010] [Accepted: 04/12/2010] [Indexed: 10/19/2022]
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Nagase H, Imaide S, Tomatsu M, Nemoto T, Nakajima M, Nakao K, Mochizuki H, Fujii H. Investigation of Beckett–Casy model 2: Synthesis of novel 15–16 nornaltrexone derivatives and their pharmacology. Bioorg Med Chem Lett 2010; 20:3726-9. [DOI: 10.1016/j.bmcl.2010.04.080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Revised: 03/25/2010] [Accepted: 04/17/2010] [Indexed: 11/29/2022]
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