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【结 构 式】 
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【分子编号】16480 【品名】Palmitoyl Chloride; hexadecanoyl chloride 【CA登记号】112-67-4 |
【 分 子 式 】C16H31ClO 【 分 子 量 】274.87424 【元素组成】C 69.91% H 11.37% Cl 12.9% O 5.82% |
合成路线1
该中间体在本合成路线中的序号：(IX)The intermediate 16alpha,17alpha-((R)-butylidenedioxy)-6alpha,9alpha-difluoro-11beta,21-dihydroxypregn-4-ene-3,20-dione (V) has been obtained in several related ways: 1. The selective reduction of 6alpha, 9alpha-difluoro-16alpha-prednisolone (I) with H2 over tris(triphenylphosphine)rhodium chloride catalyst in ethanol gives 6alpha,9alpha-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregn-4-ene-3,20-dione (II), which is cyclized with butanal (III) catalyzed by HClO4 in dioxane to yield the butylidenedioxy derivative (IV) as a diastereomeric mixture. Finally, the desired (R)-diastereomer, the intermediate (V), is separated by column chromatography over Sephadex LH-20. 2. The selective reduction of 16alpha,17alpha-((R)-butylidenedioxy)-6alpha,9alpha-difluoro-11beta,21-dihydroxypregna-1,4-diene-3,20-dione (VI) with H2 over tris(triphenylphosphine)rhodium chloride catalyst in ethanol also yields intermediate (V). 3. The selective reduction of fluocinolone acetonide (VII) with H2 over tris(triphenylphosphine)rhodium chloride catalyst in ethanol gives 6alpha,9alpha-difluoro-11beta,21-dihydroxy-16alpha,17alpha-(isopropylidenedioxy)pregen-4-ene-3,20-dione (VIII), which is then treated with butanal (III) and HClO4 over SiO2 in heptane to afford intermediate (V). The target compound is finally obtained by esterification of intermediate (V) with hexadecanoyl chloride (IX) in pyridine.
| 【1】 Axelsson, B.; Brattsand, R.; Kallstrom, L.; Thalen, A. (AstraZeneca plc); Novel steroid esters. JP 1994505233; US 5614514; US 5888995; WO 9213873 . |
| 【2】 Andersson, P.; Axelsson, B.; Brattssand, R.; Thalen, A. (AstraZeneca plc); Novel steroids. JP 1994505232; US 5674861; US 5939409; WO 9213872 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 47567 | (6S,8S,9R,10S,11S,13S,14S,16R,17S)-6,9-difluoro-17-glycoloyl-11,16,17-trihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one | C21H26F2O6 | 详情 | 详情 | |
| (II) | 47568 | (6S,8S,9R,10S,11S,13S,14S,16R,17S)-6,9-difluoro-17-glycoloyl-11,16,17-trihydroxy-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one | C21H28F2O6 | 详情 | 详情 | |
| (III) | 23694 | butyraldehyde | 123-72-8 | C4H8O | 详情 | 详情 |
| (IV) | 47569 | (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-4b,12-difluoro-6b-glycoloyl-5-hydroxy-4a,6a-dimethyl-8-propyl-3,4,4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-tetradecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one | C25H34F2O6 | 详情 | 详情 | |
| (V) | 47572 | (4aS,4bR,5S,6aS,6bS,8R,9aR,10aS,10bS,12S)-4b,12-difluoro-6b-glycoloyl-5-hydroxy-4a,6a-dimethyl-8-propyl-3,4,4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-tetradecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one | C25H34F2O6 | 详情 | 详情 | |
| (VI) | 47570 | (4aS,4bR,5S,6aS,6bS,8R,9aR,10aS,10bS,12S)-4b,12-difluoro-6b-glycoloyl-5-hydroxy-4a,6a-dimethyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one | C25H32F2O6 | 详情 | 详情 | |
| (VII) | 46292 | (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-4b,12-difluoro-6b-glycoloyl-5-hydroxy-4a,6a,8,8-tetramethyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one | C24H30F2O6 | 详情 | 详情 | |
| (VIII) | 47571 | (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-4b,12-difluoro-6b-glycoloyl-5-hydroxy-4a,6a,8,8-tetramethyl-3,4,4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-tetradecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one | C24H32F2O6 | 详情 | 详情 | |
| (IX) | 16480 | Palmitoyl Chloride; hexadecanoyl chloride | 112-67-4 | C16H31ClO | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(II)CS-682 has been synthesized by several related ways: 1) By acylation of 2'-cyano-2'-deoxy-1-(beta-D-arabinofuranosyl)cytosine (I) with hexadecanoyl chloride (II) and trimethylsilyl chloride in pyridine. 2) By acylation of 2'-cyano-2'-deoxy-1-(beta-D-arabinofuranosyl)cytosine (I) with hexadecanoyl anhydride (III) in hot DMF. 3) The protection of the OH groups of 2'-cyano-2'-deoxy-1-(beta-D-arabinofuranosyl)cytosine (I) with 1,3-dichloro-1,1,3,3-tetraisopropyldisiloxane in pyridine gives the 3',5'-cyclic disiloxane (IV), which is acylated by means of hexadecanoic acid (V) and DCC in THF, yielding the silylated compound (VI). Finally, this compound is deprotected with tetrabutylammonium fluoride (TBAF) in acetic acid.
| 【1】 Castaner, J.; Hoshi, A.; CS-682. Drugs Fut 1999, 24, 9, 957. |
| 【2】 Kaneko, M.; Hotoda, H.; Shibata, T.; Kobayashi, T.; Mitsuhashi, Y.; Matsuda, A.; Sasaki, T. (Sankyo Co., Ltd.); Pyrimidine nucleoside derivs. having anti-tumor activity, their preparation and use. EP 0536936; JP 1993194497; US 5691319 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 27915 | (2R,3S,4S,5R)-2-[4-amino-2-oxo-1(2H)-pyrimidinyl]-4-hydroxy-5-(hydroxymethyl)tetrahydro-3-furancarbonitrile | C10H12N4O4 | 详情 | 详情 | |
| (II) | 16480 | Palmitoyl Chloride; hexadecanoyl chloride | 112-67-4 | C16H31ClO | 详情 | 详情 |
| (III) | 27916 | hexadecanoic anhydride | 623-65-4 | C32H62O3 | 详情 | 详情 |
| (IV) | 27917 | (6aR,8R,9S,9aS)-8-[4-amino-2-oxo-1(2H)-pyrimidinyl]-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocine-9-carbonitrile | C22H38N4O5Si2 | 详情 | 详情 | |
| (V) | 27918 | palmitic acid | 57-10-3 | C16H32O2 | 详情 | 详情 |
| (VI) | 27919 | N-[1-[(6aR,8R,9S,9aS)-9-cyano-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide | C38H68N4O6Si2 | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号：(V)The compound S 16961-1 was synthesized in three steps from solketal (I) by acylation with nicotinoyl chloride (II), deprotection of the isopropylidene ketal (III) by heating in dilute aqueous acetic acid and acylation of this key intermediate (IV) with a slight excess of palmitoyl chloride (V) in the presence of triethylamine and 4-dimethylaminopyridine (DMAP) as catalyst. The enantiomers of S 16961-1 were obtained independently in one step from the commercially available (d)- and (l)-1,2-dipalmitoyl glycerols by acylation with nicotinoyl chloride in the presence of triethylamine. The enantiomers were found equiactive and therefore were not pursued individually.
| 【1】 Brown, G.; Albers, J.J.; Fisher, L.D.; Schaeffer, S.; Lin, J.; Kaplan, C.; Zhao, X.; Bisson, B.; Fitzpatrick, V.; Dodge, H.; Regression of coronary artery disease as a result of intensive lipid lowering therapy in men with high level of apolipoprotein B. New Engl J Med 1990, 323, 19, 1289-98. |
| 【2】 Cordi, A.A.; Duhault, J.; Laudignon, N.; Castagne, I.; S 16961-1. Drugs Fut 1996, 21, 5, 490. |
| 【3】 Cordi, A.; Lacoste, J.-M.; Duhault, J.; Espinal, J.; Boulanger, M. (ADIR et Cie.); Diacylglycerol nicotinates. EP 0574312; JP 1994056786; US 5385920 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 16476 | 2,2-dimethyl-4-hydroxymethyl-1,3-dioxolane; (2,2-dimethyl-1,3-dioxolan-4-yl)methanol; 2,3-o-Isopropylideneglycerol | 100-79-8 | C6H12O3 | 详情 | 详情 |
| (II) | 10753 | Nicotinoyl chloride | C6H4ClNO | 详情 | 详情 | |
| (III) | 16478 | (2,2-dimethyl-1,3-dioxolan-4-yl)methyl nicotinate | C12H15NO4 | 详情 | 详情 | |
| (IV) | 16479 | 2,3-dihydroxypropyl nicotinate | C9H11NO4 | 详情 | 详情 | |
| (V) | 16480 | Palmitoyl Chloride; hexadecanoyl chloride | 112-67-4 | C16H31ClO | 详情 | 详情 |
合成路线4
该中间体在本合成路线中的序号：Protection of the 4- and 6-hydroxyl groups of (XI) was achieved by conversion into the benzylidene acetal (XII) upon treatment with benzaldehyde and formic acid. The remaining 2- and 3-hydroxyl groups of (XII) were benzoylated with benzoyl chloride to afford the corresponding benzoate ester (XIII). After reduction of the azide group of (XIII) to amine (XIV) with H2S and pyridine, condensation with hexadecanoyl chloride produced the corresponding amide (XV). Deprotection of the acetal group of (XV) with TFA in CH2Cl2 gave diol (XVI), which was finally treated with SO3-Me3N complex, and then with NaHCO3 to form the title disulfate sodium salt.
| 【1】 Banville, J.; Martel, A.; Aruffo, A.A. (Bristol-Myers Squibb Co.); Sulfated beta-glycolipid derivs. as cell adhesion inhibitors. EP 0671406; JP 1995285985; US 5565433 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| 10463 | Benzoyl chloride | 98-88-4 | C7H5ClO | 详情 | 详情 | |
| 10498 | Benzaldehyde;Benzoic aldehyde;Phenylmethanal | 100-52-7 | C7H6O | 详情 | 详情 | |
| 16480 | Palmitoyl Chloride; hexadecanoyl chloride | 112-67-4 | C16H31ClO | 详情 | 详情 | |
| (XI) | 26515 | (1R,2Z)-1-((1S)-1-azido-2-[[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy]ethyl)-2-hexadecenyl benzoate | C31H49N3O8 | 详情 | 详情 | |
| (XII) | 26516 | (1R,2Z)-1-((1S)-2-[[(2S,4aR,6S,7R,8R,8aR)-7,8-dihydroxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-1-azidoethyl)-2-hexadecenyl benzoate | C38H53N3O8 | 详情 | 详情 | |
| (XIII) | 26517 | (1R,2Z)-1-((1S)-2-[[(2S,4aR,6S,7R,8S,8aS)-7,8-bis(benzoyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-1-azidoethyl)-2-hexadecenyl benzoate | C52H61N3O10 | 详情 | 详情 | |
| (XIV) | 26518 | (1R,2Z)-1-((1S)-2-[[(2S,4aR,6S,7R,8S,8aS)-7,8-bis(benzoyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-1-aminoethyl)-2-hexadecenyl benzoate | C52H63NO10 | 详情 | 详情 | |
| (XV) | 26519 | (1R,2Z)-1-[(1S)-2-[[(2S,4aR,6S,7R,8S,8aS)-7,8-bis(benzoyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-1-(palmitoylamino)ethyl]-2-hexadecenyl benzoate | C68H93NO11 | 详情 | 详情 | |
| (XVI) | 26520 | (1R,2Z)-1-[(1S)-2-[[(2S,3R,4S,5S,6R)-3,4-bis(benzoyloxy)-5-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy]-1-(palmitoylamino)ethyl]-2-hexadecenyl benzoate | C61H89NO11 | 详情 | 详情 |
合成路线5
该中间体在本合成路线中的序号：(III)Methenamine is added to a solution of bromide (I) in CHCl3 and after treatment with concentrated HCl, amine (II) is obtained. NaOAc and palmitoyl chloride (III) are added to a solution of (II) in THF to yield derivative (IV) which is finally converted to (V) by treatment with paraformaldehyde and pyrrolidine in ethanol, followed by treatment with concentrated HCl, reduction with NaBH4 and final hydrolysis with diluted HCl.
| 【1】 Lee, L.; et al.; Improved inhibitors of glucosylceramide synthase. J Biol Chem 1999, 274, 21, 14662. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| 11376 | Pyrrolidine | 123-75-1 | C4H9N | 详情 | 详情 | |
| (I) | 41363 | 2,3-dihydro-1,4-benzodioxine-6-carbonyl bromide | C9H7BrO3 | 详情 | 详情 | |
| (II) | 41364 | 2-amino-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-1-ethanone | C10H11NO3 | 详情 | 详情 | |
| (III) | 16480 | Palmitoyl Chloride; hexadecanoyl chloride | 112-67-4 | C16H31ClO | 详情 | 详情 |
| (IV) | 41365 | N-[2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-oxoethyl]hexadecanamide | C26H41NO4 | 详情 | 详情 | |
| (V) | 65179 | N-[(2R)-2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-hydroxy-1-(1-pyrrolidinylmethyl)ethyl]hexadecanamide | C31H52N2O4 | 详情 | 详情 |