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Kawagoe F, Mototani S, Yasuda K, Mano H, Sakaki T, Kittaka A. Stereoselective Synthesis of 24-Fluoro-25-Hydroxyvitamin D 3 Analogues and Their Stability to hCYP24A1-Dependent Catabolism. Int J Mol Sci 2021; 22:ijms222111863. [PMID: 34769295 PMCID: PMC8584271 DOI: 10.3390/ijms222111863] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Two 24-fluoro-25-hydroxyvitamin D3 analogues (3,4) were synthesized in a convergent manner. The introduction of a stereocenter to the vitamin D3 side-chain C24 position was achieved via Sharpless dihydroxylation, and a deoxyfluorination reaction was utilized for the fluorination step. Comparison between (24R)- and (24S)-24-fluoro-25-hydroxyvitamin D3 revealed that the C24-R-configuration isomer 4 was more resistant to CYP24A1-dependent metabolism than its 24S-isomer 3. The new synthetic route of the CYP24A1 main metabolite (24R)-24,25-dihydroxyvitamin D3 (6) and its 24S-isomer (5) was also studied using synthetic intermediates (30,31) in parallel.
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Affiliation(s)
- Fumihiro Kawagoe
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Tokyo 173-8605, Japan; (F.K.); (S.M.)
| | - Sayuri Mototani
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Tokyo 173-8605, Japan; (F.K.); (S.M.)
| | - Kaori Yasuda
- Faculty of Engineering, Toyama Prefectural University, Imizu 939-0398, Japan; (K.Y.); (H.M.); (T.S.)
| | - Hiroki Mano
- Faculty of Engineering, Toyama Prefectural University, Imizu 939-0398, Japan; (K.Y.); (H.M.); (T.S.)
| | - Toshiyuki Sakaki
- Faculty of Engineering, Toyama Prefectural University, Imizu 939-0398, Japan; (K.Y.); (H.M.); (T.S.)
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Tokyo 173-8605, Japan; (F.K.); (S.M.)
- Correspondence: ; Tel.: +81-3-3964-8109; Fax: +81-3-3964-8117
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2
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Sakamoto R, Nagata A, Ohshita H, Mizumoto Y, Iwaki M, Yasuda K, Sakaki T, Nagasawa K. Chemical Synthesis of Side-Chain-Hydroxylated Vitamin D 3 Derivatives and Their Metabolism by CYP27B1. Chembiochem 2021; 22:2896-2900. [PMID: 34250710 DOI: 10.1002/cbic.202100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/07/2021] [Indexed: 11/09/2022]
Abstract
1α,25-Dihydroxyvitamin D3 (abbreviated here as 1,25D3 ) is a hormonally active form of vitamin D3 (D3 ), and is produced from D3 by CYP27 A1-mediated hydroxylation at C25, followed by CYP27B1-mediated hydroxylation at C1. Further hydroxylation of 25D3 and 1,25D3 occurs at C23, C24 and C26 to generate corresponding metabolites, except for 1,25R,26D3 . Since the capability of CYP27B1 to hydroxylate C1 of side-chain-hydroxylated metabolites other than 23S,25D3 and 24R,25D3 has not been examined, we have here explored the role of CYP27B1 in the C1 hydroxylation of a series of side-chain-hydroxylated D3 derivatives. We found that CYP27B1 hydroxylates the R diastereomers of 24,25D3 and 25,26D3 more effectively than the S diastereomers, but shows almost no activity towards either diastereomer of 23,25D3 . This is the first report to show that CYP27B1 metabolizes 25,26D3 to the corresponding 1α-hydroxylated derivative, 1,25,26D3 . It will be interesting to examine the physiological relevance of this finding.
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Affiliation(s)
- Ryota Sakamoto
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, 184-8588, Tokyo, Japan
| | - Akiko Nagata
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, 184-8588, Tokyo, Japan
| | - Haruki Ohshita
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Yuka Mizumoto
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, 184-8588, Tokyo, Japan
| | - Miho Iwaki
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, 184-8588, Tokyo, Japan
| | - Kaori Yasuda
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Toshiyuki Sakaki
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Kazuo Nagasawa
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, 184-8588, Tokyo, Japan
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3
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Nicoletti D, Gregorio C, Mouriño A, Maestro M. A short practical approach to 24R,25-dihydroxyvitamin D3. J Steroid Biochem Mol Biol 2010; 121:43-5. [PMID: 20385233 DOI: 10.1016/j.jsbmb.2010.03.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 03/08/2010] [Accepted: 03/25/2010] [Indexed: 01/28/2023]
Abstract
A synthesis of the vitamin D3 metabolite 24R,25-dihydroxyvitamin D3 (1) by Lythgoe's Wittig-Horner approach is described. The key step of the synthesis is the stereocontrolled introduction of the 24-hydroxyl group by a palladium(0)-induced [3,3]-sigmatropic rearrangement on a 22R-allylic acetate (7).
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Affiliation(s)
- Daniel Nicoletti
- Departamento de Química Orgánica y Unidad Asociada al C.S.I.C., Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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4
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d- and l-Serine, useful synthons for the synthesis of 24-hydroxyvitamin D3 metabolites. A formal synthesis of 1α,24R,25-(OH)3-D3, 24R,25-(OH)2-D3 and 24S,25-(OH)2-D3. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.02.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Scherlitz-Hofmann I, Bößneck U, Schönecker B. Synthesis of 22-Cupriosteroids, a New Route to Steroids Possessing Oxygenated Side Chains. European J Org Chem 2006. [DOI: 10.1002/jlac.199619960211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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6
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Yamada S, Yamamoto K, Ino E, Sakaida K, Takayama H, Shinki T, Suda T, Iitaka Y, Itai A. Synthesis and determination of the stereochemistry of 23,25-dihydroxy-24-oxovitamin D3, a major metabolite of 24(R),25-dihydroxyvitamin D3. Biochemistry 2002. [DOI: 10.1021/bi00437a007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Hatakeyama S, Kawase A, Uchiyama Y, Maeyama J, Iwabuchi Y, Kubodera N. Synthesis and biological characterization of 1alpha,24,25-trihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3) (24-hydroxylated ED-71). Steroids 2001; 66:267-76. [PMID: 11179734 DOI: 10.1016/s0039-128x(00)00149-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
24-Hydroxylated derivatives were synthesized in 24(R) and 24(S) forms by the convergent method as analogs related to 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3). In the convergent synthesis, the A-ring fragment, synthesized from diethyl D-tartarate, and the C/D-ring fragments in 24(R) and 24(S) forms (vitamin D numbering), obtained from vitamin D(2) via the Inhoffen-Lythgoe diol, were coupled in moderate yields to give 1alpha,24(R),25-trihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3) and 1alpha,24(S),25-trihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3). In preliminary biological evaluations, 24-hydroxylation of 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3) caused weakened affinity to vitamin D binding protein in vitro and less calcemic activity in vivo compared to the parent compound. While the affinity to vitamin D receptor in 24(R) epimer was sustained, the affinity in 24(S) epimer was less than that of the parent compound.
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Affiliation(s)
- S Hatakeyama
- Faculty of Pharmaceutical Sciences, Nagasaki University, 852-8521, Nagasaki, Japan
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8
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Hollingsworth RI, Wang G. Toward a carbohydrate-based chemistry: progress in the development of general-purpose chiral synthons from carbohydrates. Chem Rev 2000; 100:4267-82. [PMID: 11749348 DOI: 10.1021/cr990374e] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R I Hollingsworth
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824
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9
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Abstract
Glucuronidation of 24,25-dihydroxyvitamin D3 has been investigated in in vitro and in vivo experiments. Three positional isomers of 24,25-dihydroxyvitamin D3 monoglucuronide were synthesized from 24,25-dihydroxyprovitamin D3 derivatives with Koenigs-Knorr reaction and used as standard samples. In the presence of the rat liver microsomal fraction and uridine-5'-diphosphoglucuronic acid, 24,25-dihydroxyvitamin D3 gave 3- and 24-glucuronides as the main products in almost equal amounts, but only a small amount of the corresponding 25-glucuronide was obtained. 24,25-Dihydroxyvitamin D3 monoglucuronide was deconjugated with rat intestine homogenate, which indicated the entero-hepatic circulation of 24,25-dihydroxyvitamin D3. After the administration of 24,25-dihydroxyvitamin D3 to rats, its 3- and 24-glucuronides were identified from the bile as inferred from the in vitro experiment. However, the in vivo glucuronidation occurred at the 24-position in preference to the 3-position, and the corresponding 25-glucuronide was not detected. These glucuronides were identified in comparison with standard samples based on their chromatographic behavior during high-performance liquid chromatography and data obtained from liquid chromatography-electrospray ionization-mass spectrometry, which was helpful in identifying these compounds.
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Affiliation(s)
- T Higashi
- Faculty of Pharmaceutical Sciences, Kanazawa University, Takara-machi, Japan
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10
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Shimoyamada A, Tomiyama S, Shimizu M, Yamamoto K, Kunii S, Yamada S. In vivo metabolism of 24R,25-dihydroxyvitamin D3: structure of its major bile metabolite. BIOCHIMICA ET BIOPHYSICA ACTA 1997; 1346:147-57. [PMID: 9219897 DOI: 10.1016/s0005-2760(97)00026-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In vivo metabolism of 24R,25-dihydroxyvitamin D3 (24,25-(OH)2D3) in female dogs has been studied thoroughly, and its major bile metabolite identified. After single oral administration of 24,25-(OH)2 [6,19,19-3H]D3 the plasma concentrations of radioactive metabolites were monitored for 504 h, and the metabolites in the bile collected and analyzed. The concentration of 24,25-(OH)2D3 in plasma reached a maximum after 6 h and decayed in two distinct phases; a fast-phase with a half-life of 17 h, followed by a slow-phase with a 17-day half-life. The area under the concentration/time curve (AUC) was 78-84% (0-504 h). The only detectable metabolite in the plasma was 25-hydroxy-24-oxovitamin D3 whose AUC was less than 5%. At 504 h, about 50% of administered radioactivity has been excreted, of which about 90% was found in the feces, indicating most of the administered 24,25-(OH)2D3 to be excreted in bile. A major metabolite, which constituted 23% of the total bile radioactivity at 504 h, was found in the bile. This metabolite was efficiently deconjugated by beta-glucuronidase to afford an aglycone which was identified as 23S,25-dihydroxy-24-oxovitamin D3 (23S,25-(OH)2-24-oxo-D3), by co-chromatography on HPLC with synthetic standards. The glucuronide was isolated from the bile of dogs given large doses of 24,25-(OH)2D3, and the structure determined being 23-(beta-glucuronide) of 23S,25-(OH)2-24-oxo-D3, by analyzing its negative ion mass spectrum and the positive ion mass spectrum of its derivatives. Thus it was concluded that, in dogs, 24,25-(OH)2D3 is a long lasting vitamin D metabolite, is mainly excreted in bile when metabolized to 23S,25-(OH)2-24-oxo-D3 and is conjugated at 23-OH as glucuronide.
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Affiliation(s)
- A Shimoyamada
- Institute for Medical and Dental Engineering, Tokyo Medical and Dental University, Kanda, Chiyoda-ku, Japan
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11
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Kobayashi N, Higashi T, Saito K, Murayama T, Douya R, Shimada K. Specificity of polyclonal antibodies raised against a novel 24,25-dihydroxyvitamin D3-bovine serum albumin conjugant linked through the C-11alpha or C-3 position. J Steroid Biochem Mol Biol 1997; 62:79-87. [PMID: 9366501 DOI: 10.1016/s0960-0760(97)00016-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Novel hapten-carrier conjugants were prepared by coupling 11 alpha-hemiglutaryloxy-(24R)-24,25-dihydroxyvitamin D3 or (24R)-24,25-dihydroxyvitamin D3 [24,25(OH)2D3] 3-hemiglutarate with bovine serum albumin (BSA), to obtain an antibody with high specificity and affinity for use in 24,25(OH)2D3 immunoassay. The polyclonal antibodies showing high titre were each elicited in three or four rabbits against these two conjugants; the antibodies obtained from the former and the latter conjugants were expressed as Ab11 and Ab3, respectively. These had a much higher affinity for 24,25(OH)2D3 than that of the vitamin D binding protein (DBP). Specificity of the antibodies was investigated by crossreactivities with 11 related compounds in a radioimmunoassay (RIA) system. The Abll well discriminated the 1 alpha-hydroxylated metabolites such as 1,24,25(OH)3D3 (< or = 0.69%) and 1,25(OH)2D3 (< or = 0.25%), but significantly crossreacted with some side chain modified compounds such as (24S)-24,25-dihydroxyvitamin D3 [24S,25(OH)2D3] (> or = 67%), 25(OH)D3 (> or = 14%) and 25,26(OH)2D3 (> or = 23%). On the other hand, the Ab3 showed only negligible crossreactivities with the compounds having a different side chain structure such as 24S,25(OH)2D3 (< or = 3.0%), 25(OH)D3 (< 0.3%) and 25,26(OH)2D3 (< or = 0.53%). A significant crossreaction was found only with 1,24,25(OH)3D3 (> or = 68%). These results demonstrated that the Ab3 are promising for developing an immunoassay system which is much more specific and sensitive than conventional competitive protein binding assays based on DBP.
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Affiliation(s)
- N Kobayashi
- Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
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12
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Tomiyama S, Nitta T, Yamada S. Gas chromatography/mass spectrometric analysis of 24R,25-dihydroxyvitamin D3 using 24R,25-dihydroxy[6,19,19-2H]vitamin D3 as internal standard. Steroids 1994; 59:559-63. [PMID: 7846739 DOI: 10.1016/0039-128x(94)90075-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Gas chromatography/mass spectrometric (GC/MS) analysis of 24R,25-dihydroxyvitamin D3 (24,25-(OH)2D3, 1a) in rat serum is examined using 6,19,19-trideuterated derivative (24,25-(OH)2[6,19,19-2H]D3, 1c) as an internal standard. Pyro- and isopyro-24,25-(OH)2D3 (2a and 3a) are synthesized and the structures are determined unambiguously by their spectral data including nuclear overhauser enhancement study of the NMR spectra. The two peaks which appear on the total ion chromatogram of 24,25-cyclic n-butyl boronate-3-trimethylsilyl derivative of 24,25-(OH)2D3 are identified to be those of the pyro and isopyro isomers (2a and 3a) by direct comparison with the synthetic standards. Analysis of the GC/MS spectrum of 24,25-(OH)2[6,19,19-2H]D3 (1c) indicated that the CH3(19) is preferentially eliminated in the fragmentation giving rise to a base peak (M-TMSOH-Me)+. Thus the molecular ion peak, which is about 20% of the base peak, rather than the base peak is used for GC/MS assay of 24,25-(OH)2D3 in serum.
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Affiliation(s)
- S Tomiyama
- Biomedical Research Laboratories, Kureha Chemical Industry Co., Ltd., Tokyo, Japan
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13
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Kobayashi N, Higashi T, Shimada K. Synthesis of (24R)-11α-(4-carboxybutyryloxy)-24,25-dihydroxyvitamin D3: a novel haptenic derivative producing antibodies of high affinity for (24R)-24,25-dihydroxyvitamin D3. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/p19940000269] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Schick H, Schrötter E, Szymanowski M, Knoll A. Enzymes in Organic Synthesis, 15. – Synthesis of Methyl (S)-(−)-2,3-O-Isopropylideneglycerate by Enantioselective Enzyme-catalyzed Hydrolysis of Methyl (±)-2,3-O-Isopropylideneglycerate. European J Org Chem 1993. [DOI: 10.1002/jlac.199319930118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Schick H, Schr�tter E, Szymanowski M, Knoll A. Synthesis of Alkyl (�)-2,3-Di-O-acylglycerates and Attempts Directed to their Conversion into Alkyl (R)-2,3-Di-O-acylglycerates by Enzyme-catalyzed Enantioselective Deacylation Reactions [1]. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/prac.19933350709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Fall Y, Torneiro M, Castedo L, Mouriño A. A nitrile approach to the synthesis of the side chain of vitamin D metabolites and analogues. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)61019-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Schwarz KH, Kleiner K, Ludwig R, Schrötter E, Schick H. Synthesis of methyl (±)-2,3-O-isopropylideneglycerate by electrochemical oxidation of (±)-1,2-O-isopropylideneglycerol. European J Org Chem 1991. [DOI: 10.1002/jlac.199119910191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Schrötter E, Weidner J, Schick H. Synthesis of an enantiomerically pure sterol side-chain precursor by enantioselective reduction of 1,3-dihydroxy-3-methyl-2-butanone with baker's yeast. European J Org Chem 1991. [DOI: 10.1002/jlac.199119910172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Emons CH, Koster BF, Vekemans JA, Sheldon RA. A new convenient method for the synthesis of chiral C3-synthons. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/s0957-4166(00)82119-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Tachibana Y, Yokoyama S, Tsuji M. Syntheses of Cholesta-5,7-diene-3β,25-diol and Cholesta-5,7-diene-1α,3β,25-triol. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1989. [DOI: 10.1246/bcsj.62.2599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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22
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Novel and stereoselective synthesis of 1α-hydroxylated vitamin d metabolites Stereocontrolled synthesis of (24R)-1α,24,25-trihydroxycholesterol. Tetrahedron Lett 1986. [DOI: 10.1016/s0040-4039(00)83943-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Perlman K, Schnoes HK, Tanaka Y, DeLuca HF, Kobayashi Y, Taguchi T. Chemical synthesis of (24R)-24,25-dihydroxy[26,27-3H]vitamin D3 of high specific activity. Biochemistry 1984; 23:5041-8. [PMID: 6333896 DOI: 10.1021/bi00316a033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Chemical synthesis of (24R)-24,25-dihydroxy-[26,27-3H]vitamin D3, and its 24-epimer has been devised that allows introduction of 3H at the terminal step of the synthesis. The epimeric mixture is derivatized as the tris(trimethylsilyl) ethers and resolved by high-performance liquid chromatography. The product has a specific activity of 178 Ci/mmol and is fully active in binding to the rat plasma vitamin D binding protein and in the elevation of serum calcium levels of vitamin D deficient rats. The synthesis begins with the readily available 3 beta-hydroxy-5-cholenic acid methyl ester and involves a Pummerer rearrangement, introduction of the delta 7, irradiation, and isolation of the 26,27-dinor-25-carboxylic acid methyl ester of vitamin D3. This compound is then treated with a Grignard reagent containing 3H (80 +/- 10 Ci/mmol).
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24
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25
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26
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Yamada S, Ohmori M, Takayama H, Takasaki Y, Suda T. Isolation and identification of 1 alpha- and 23-hydroxylated metabolites of 25-hydroxy-24-oxovitamin D3 from in vitro incubates of chick kidney homogenates. J Biol Chem 1983. [DOI: 10.1016/s0021-9258(18)33278-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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27
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Shiina Y, Abe E, Miyaura C, Tanaka H, Yamada S, Ohmori M, Nakayama K, Takayama H, Matsunaga I, Nishii Y, DeLuca HF, Suda T. Biological activity of 24,24-difluoro-1 alpha, 25-dihydroxyvitamin D3 and 1 alpha, 25-dihydroxyvitamin D3-26,23-lactone in inducing differentiation of human myeloid leukemia cells. Arch Biochem Biophys 1983; 220:90-4. [PMID: 6572492 DOI: 10.1016/0003-9861(83)90390-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Vitamin D compounds added to the culture medium induce differentiation of human myeloid leukemia cells (HL-60 cells) by binding to a specific cytosol receptor protein. This system provides a biologically relevant and technically simple assay to examine the relationship between molecular structure and biological activity of vitamin D compounds. Using this culture system, the biological activity of 24,24-F2-1 alpha,25(OH)2D3 and 1 alpha,25(OH)2D3-26,23-lactone was assayed. 24,24-F2-1 alpha,25(OH)2D3 was four to seven times more potent than 1 alpha,25(OH)2D3 in inducing phagocytosis and C3 rosette formation of HL-60 cells, though both compounds bound equally well to the cytosol receptor, suggesting that the defuorination at the 24-carbon position may stimulate membrane permeability of the compound. 1 alpha,25(OH)2D3-26,23-lactone, on the other hand, was only 1/200th as active as 1 alpha,25(OH)2D3. The binding affinity of the lactone for the cytosol receptor was identical with that of 1 alpha (OH)D3, suggesting that the lactone formation between the 26 and 23 positions masks the function of the 25-hydroxyl group. The binding affinity of vitamin D3 derivatives to the specific cytosol receptor of HL-60 cells was well correlated with that of intestinal cytosol protein specifically bound to 1 alpha,25(OH)2D3.
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28
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29
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Takasaki Y, Suda T, Yamada S, Ohmori M, Takayama H, Nishii Y. Chemical synthesis, biological activity, and metabolism of 25-hydroxy-24-oxovitamin D3. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)34842-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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30
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Ohmori M, Yamada S, Takayama H, Ochi K. Stereocontrolled synthesis of steroid side chain; stereoselective syntheses of cholesterol and 25-hydroxycholesterol. Tetrahedron Lett 1982. [DOI: 10.1016/s0040-4039(00)85693-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yamada S, Nakayama K, Takayama H. Stereoselective synthesis of (25S)-25-hydroxyvitamin D3 26,23-lactone. Tetrahedron Lett 1981. [DOI: 10.1016/s0040-4039(01)90528-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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