用途:抗过敏药物的中间体。
生产方法:由咖啡因经氯化和水解而制得。在反应锅中,加入咖啡因、四氯化碳与硝基苯混合液以及碘片,升温至80℃以下后通入氯气进行反应,持续3小时。随后继续升温至90-95℃,通氯约5小时以上,使反应液完全澄清,得到7,8-二氯咖啡因。加水加热蒸馏,直至馏出液清澈且无甲醛味为止。冷冻结晶后甩滤,并用乙醇和氯仿依次洗涤,最终甩干得8-氯茶碱。收率为60%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
茶碱 | theophylline | 58-55-9 | C7H8N4O2 | 180.166 |
1,3-二甲基尿酸 | 1,3-dimethyluric acid | 944-73-0 | C7H8N4O3 | 196.166 |
1,3-二甲基-8-硝基-1H-嘌呤2,6(3H,9H)-二酮 | 8-nitrotheophylline | 2099-73-2 | C7H7N5O4 | 225.164 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
8-氯-3,7-二氢-1,3,7-三甲基-1H-嘌呤-2,6-二酮 | 8-chlorocaffeine | 4921-49-7 | C8H9ClN4O2 | 228.638 |
茶碱 | theophylline | 58-55-9 | C7H8N4O2 | 180.166 |
—— | 8-chloro-7-ethyl-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | 25314-95-8 | C9H11ClN4O2 | 242.665 |
—— | 8-chloro-N7-propargyltheophylline | —— | C10H9ClN4O2 | 252.66 |
—— | N5-allyl-6-chloro-1,3-dimethylxanthine | 335206-67-2 | C10H11ClN4O2 | 254.676 |
—— | 8-chloro-7-(2-hydroxy-ethyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione | 10184-32-4 | C9H11ClN4O3 | 258.664 |
—— | 8-chloro-1,3-dimethyl-7-propyl-1H-purine-2,6(3H,7H)-dione | 954-12-1 | C10H13ClN4O2 | 256.692 |
—— | 7-(but-2-ynyl)-8-chloro-1,3-dimethyl-3,7-dihydro-purine-2,6-dione | 454451-15-1 | C11H11ClN4O2 | 266.687 |
—— | 8-chloro-1,3-dimethyl-7-(3-methyl-but-2-enyl)-3,7-dihydro-purine-2,6-dione | 454451-13-9 | C12H15ClN4O2 | 282.73 |
—— | 1,3-dimethyl-7-((E)-2-hexen-1-yl)-8-chloro-xanthine | 454712-53-9 | C13H17ClN4O2 | 296.757 |
—— | 8-chloro-7-isopentyl-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | —— | C12H17ClN4O2 | 284.746 |
—— | 8-aminotheophylline | 19410-53-8 | C7H9N5O2 | 195.181 |
—— | 2-(8-Chloro-1,3-dimethyl-2,6-dioxopurin-7-yl)acetamide | —— | C9H10ClN5O3 | 271.663 |
—— | (8-chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-yl)-acetic acid | 59426-33-4 | C9H9ClN4O4 | 272.648 |
—— | 8-Chlor-7-acetonyl-theophyllin | 114303-78-5 | C10H11ClN4O3 | 270.675 |
—— | 7-benzyl-8-chloro-1,3-dimethyl-1,3,7-trihydropurine-2,6-dione | 109286-40-0 | C14H13ClN4O2 | 304.736 |
—— | 8-chloro-1,3-dimethyl-7-(4-methylbenzyl)-3,7-dihydropurine-2,6-dione | 133167-82-5 | C15H15ClN4O2 | 318.763 |
—— | 1,3-dimethyl-7-(2-hydroxy-butyl)-8-chloro-xanthine | —— | C11H15ClN4O3 | 286.718 |
—— | 8-Methylthiotheophylline | 1784-71-0 | C8H10N4O2S | 226.259 |
—— | 8-chloro-1,3-dimethyl-7-(4-chlorobenzyl)-3,7-dihydropurine-2,6-dione | 1604-78-0 | C14H12Cl2N4O2 | 339.181 |
—— | 8-chloro-1,3-dimethyl-7-(3-methylbenzyl)-1H-purine-2,6-(3H,7H)-dione | —— | C15H15ClN4O2 | 318.763 |
—— | 8-Chloro-1,3-dimethyl-7-trimethylsilanyl-3,7-dihydro-purine-2,6-dione | 1071188-52-7 | C10H15ClN4O2Si | 286.793 |
—— | 8-chloro-1,3-dimethyl-7-(2-methylbenzyl)-3,7-dihydropurine-2,6-dione | 133193-05-2 | C15H15ClN4O2 | 318.763 |
—— | 8-chloro-1,3-dimethyl-7-morpholin-4-ylmethyl-3,7-dihydro-purine-2,6-dione | 23938-50-3 | C12H16ClN5O3 | 313.744 |
—— | 7-(3-bromobenzyl)-8-chloro-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | —— | C14H12BrClN4O2 | 383.632 |
—— | 8-(2-Amino-aethylamino)-theophyllin | 14251-32-2 | C9H14N6O2 | 238.249 |
8-(2-羟基乙基氨基)茶碱 | 8-<2-Hydroxy-aethylamino>-theophyllin | 7654-01-5 | C9H13N5O3 | 239.234 |
1H-嘌呤-2,6-二酮,8-氯-7-[(2-氯苯基)甲基]-3,7-二氢-1,3-二甲基- | 7-o-Chlorbenzyl-8-chlor-theophyllin | 1604-77-9 | C14H12Cl2N4O2 | 339.181 |
8-氯-1,3-二甲基-7-[(4-硝基苯基)甲基]嘌呤-2,6-二酮 | 8-chloro-1,3-dimethyl-7-(4-nitrobenzyl)-3,7-dihydropurine-2,6-dione | 1604-79-1 | C14H12ClN5O4 | 349.733 |
—— | 7-(2-bromobenzyl)-8-chloro-1,3-dimethyl-3,7-dihydropurine-2,6-dione | 346597-03-3 | C14H12BrClN4O2 | 383.632 |
—— | 8-[2-(dimethylamino)ethylamino]-1,3-dimethyl-7H-purine-2,6-dione | —— | C11H18N6O2 | 266.303 |
—— | 2-(8-Chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurin-7-ylmethyl)benzonitrile | 389062-89-9 | C15H12ClN5O2 | 329.746 |
—— | 1,3,7-trimethyl-8-thio-uric acid | 1790-74-5 | C8H10N4O2S | 226.259 |
8-苯基茶碱 | 8-phenyltheophylline | 961-45-5 | C13H12N4O2 | 256.264 |
—— | 1,3,7-trimethyl-8-(methylthio)-3,7-dihydro-1H-purine-2,6-dione | 6287-54-3 | C9H12N4O2S | 240.286 |
—— | 1,3,7-trimethyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione | 19977-26-5 | C10H11N5O2 | 233.23 |
—— | 1,3-dimethyl-8-{[2-(morpholin-4-yl)ethyl]amino}-3,7-dihydro-1H-purine-2,6-dione | —— | C13H20N6O3 | 308.34 |
—— | 1,3-dimethyl-8-(methylsulfonyl)-1H-purine-2,6(3H,7H)-dione | 58083-75-3 | C8H10N4O4S | 258.258 |
—— | 1,3-dimethyl-8-(E)-styryl-3,7-dihydro-1H-purine-2,6-dione | 147699-92-1 | C15H14N4O2 | 282.302 |
—— | 8-Piperazino-theophyllin | 54119-57-2 | C11H16N6O2 | 264.287 |
—— | 8-(Ethylthio)-3,7-dihydro-1,3,7-trimethyl-1H-purin-2,6-dion | 6287-57-6 | C10H14N4O2S | 254.313 |
—— | 8-biphenyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione | 93214-88-1 | C19H16N4O2 | 332.362 |
—— | 1,3-dimethyl-8-morpholin-4-yl-3,7-dihydropurine-2,6-dione | 30958-49-7 | C11H15N5O3 | 265.272 |
—— | 1,3,7-trimethyl-8-(propylthio)-1H-purine-2,6(3H,7H)-dione | —— | C11H16N4O2S | 268.34 |
—— | 8-(2-hydroxy-ethylmercapto)-1,3,7-trimethyl-3,7-dihydro-purine-2,6-dione | 114864-92-5 | C10H14N4O3S | 270.312 |
—— | 8-(isopropylthio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C11H16N4O2S | 268.34 |
7-乙基-8-疏基-1,3-二甲基-3,7-二氢-嘌呤-2,6-二酮 | 7-ethyl-8-mercapto-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | 335403-18-4 | C9H12N4O2S | 240.286 |
—— | 8-chloro-1,3-dimethyl-7-(2-nitrobenzyl)-3,7-dihydropurine-2,6-dione | 346597-07-7 | C14H12ClN5O4 | 349.733 |
—— | 1,3,7-trimethyl-8-(phenethylthio)-1H-purine-2,6(3H,7H)-dione | 1351935-94-8 | C16H18N4O2S | 330.411 |
—— | 7-ethyl-8-hydrazinyl-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | 21266-25-1 | C9H14N6O2 | 238.249 |
—— | 8-(benzylthio)-1,3,7-trimethyl-1H-purine-2,6-(3H,7H)-dione | 24851-28-3 | C15H16N4O2S | 316.384 |
—— | 8-(phenylsulfanyl)caffeine | 130332-80-8 | C14H14N4O2S | 302.357 |
—— | 8-((3-chlorobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 1415676-64-0 | C15H15ClN4O2S | 350.829 |
—— | 8-((4-bromobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 1351935-96-0 | C15H15BrN4O2S | 395.28 |
—— | 8-((4-chlorobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 312507-46-3 | C15H15ClN4O2S | 350.829 |
—— | (E)-8-(2-Phenylethenyl)-3,7-dihydro-1,3,7-trimethyl-1H-purin-2,6-dion | 99765-13-6 | C16H16N4O2 | 296.329 |
—— | 8-((4-fluorobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 460725-53-5 | C15H15FN4O2S | 334.374 |
—— | 1,3,7-trimethyl-8-(methylsulfonyl)-1H-purine-2,6(3H,7H)-dione | —— | C9H12N4O4S | 272.285 |
8-[2-(二苯基甲氧基)-N-甲基乙基氨基]-1,3-二甲基黄嘌呤 | 8-[2-(diphenylmethoxy)ethylmethylamino]theophylline | 33120-34-2 | C23H25N5O3 | 419.483 |
—— | 1,3-dimethyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione | 3767-50-8 | C15H13N5O2 | 295.301 |
—— | 1,3,7-trimethyl-8-(pyridin-3-ylmethylthio)-1H-purine-2,6(3H,7H)-dione | —— | C14H15N5O2S | 317.371 |
—— | 8-((3-bromobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 312507-47-4 | C15H15BrN4O2S | 395.28 |
—— | 1,3-dimethyl-8-[4-(2-pyridinyl)-1-piperazinyl]-3,7-dihydro-1H-purine-2,6-dione | —— | C16H19N7O2 | 341.373 |
—— | 1,3,7-trimethyl-8-phenylxanthine | 6439-88-9 | C14H14N4O2 | 270.291 |
—— | 7-(2-methoxyethyl)-1,3-dimethyl-8-(methylthio)-1H-purine-2,6(3H,7H)-dione | —— | C11H16N4O3S | 284.339 |
—— | 8-((4-methoxybenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 346579-32-6 | C16H18N4O3S | 346.41 |
—— | 4-(1,3-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperazine-1-carboxylic acid tert-butyl ester | 586408-12-0 | C16H24N6O4 | 364.404 |
—— | 8-((2-bromobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C15H15BrN4O2S | 395.28 |
—— | 8-((2-fluorobenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C15H15FN4O2S | 334.374 |
—— | 8-(2,5-dichlorobenzylthio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C15H14Cl2N4O2S | 385.274 |
—— | 1,3,7-trimethyl-8-(pyridin-2-ylmethylthio)-1H-purine-2,6(3H,7H)-dione | —— | C14H15N5O2S | 317.371 |
—— | 7-[4-(4-Chlorobenzoyl)benzyl]-1,3-dimethyluric acid | 183164-70-7 | C21H17ClN4O4 | 424.843 |
—— | 2-((1,3,7-trimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-ylthio)methyl)benzonitrile | —— | C16H15N5O2S | 341.393 |
—— | 8-(2,6-dichlorobenzylthio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C15H14Cl2N4O2S | 385.274 |
—— | 8-(ethylsulfonyl)-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione | —— | C10H14N4O4S | 286.312 |
—— | 8-biphenyl-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione | —— | C20H18N4O2 | 346.389 |
—— | 8-((2-methoxybenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | 692267-93-9 | C16H18N4O3S | 346.41 |
—— | 8-(2-hydroxy-ethyl)-1,3,7-trimethyl-1H,8H-imidazo[2,1-f]purine-2,4-dione | 23229-88-1 | C12H15N5O3 | 277.283 |
—— | 7-methyl-8-[2-N,N-dimetyl-ethyl]-1,3-dimethyl-(1H,8H)-imidazo[2,1-f]purine-2,4-dione | —— | C14H20N6O2 | 304.352 |
—— | 7-benzyl-8-hydrazino-1,3-dimethyl-3,7-dihydropurine-2,6-dione | 372495-23-3 | C14H16N6O2 | 300.32 |
—— | 8-hydrazino-1,3-dimethyl-7-(4-methylbenzyl)-3,7-dihydropurine-2,6-dione | 335403-10-6 | C15H18N6O2 | 314.347 |
—— | 8-((2,5-dimethoxybenzyl)thio)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C17H20N4O4S | 376.436 |
—— | 8-hydrazino-1,3-dimethyl-7-(4-chlorobenzyl)-3,7-dihydropurine-2,6-dione | 536719-07-0 | C14H15ClN6O2 | 334.765 |
—— | 1,3,7-trimethyl-8-((2-nitrobenzyl)thio)-1H-purine-2,6(3H,7H)-dione | —— | C15H15N5O4S | 361.381 |
—— | 7-methyl-8-[2-N-morpholinyl-ethyl]-1,3-dimethyl-(1H,8H)-imidazo[2,1-f]purine-2,4-dione | —— | C16H22N6O3 | 346.389 |
—— | 8-(benzylsulfonyl)-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione | —— | C15H16N4O4S | 348.382 |
—— | 7-benzyl-1,3-dimethyl-8-(E)-styryl-3,7-dihydro-1H-purine-2,6-dione | —— | C22H20N4O2 | 372.426 |
—— | 7-chloromethyl-1,3-dimethyl-6,7-dihydrooxazolo[2,3-f]purine-2,4-dione | 25565-94-0 | C10H11ClN4O3 | 270.675 |
—— | 8-(3,5-dichlorobenzylsulfonyl)-1,3,7-trimethyl-1H-purine-2,6(3H,7H)-dione | —— | C15H14Cl2N4O4S | 417.273 |
—— | 7-(3-bromobenzyl)-8-(2-chloroethyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione | —— | C16H16BrClN4O2 | 411.686 |
—— | 7-benzyl-1,3-dimethyl-8-phenyl-3,7-dihydro-1H-purine-2,6-dione | 7273-36-1 | C20H18N4O2 | 346.389 |
—— | 8-caffeinyl phenyl sulfone | —— | C14H14N4O4S | 334.356 |
—— | 8-(4-hydroxy-phenyl)-1,3,7-trimethyl-1H,8H-imidazo[2,1-f]purine-2,4-dione | 31488-12-7 | C16H15N5O3 | 325.327 |
—— | 7-benzyl-8-biphenyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione | —— | C26H22N4O2 | 422.486 |
—— | 7-Allyloxymethyl-1,3-dimethyl-6,7-dihydro-1H-oxazolo[2,3-f]purine-2,4-dione | 145072-22-6 | C13H16N4O4 | 292.294 |
—— | 2,4,7-Trimethyl-6-pyridin-3-ylpurino[7,8-a]imidazole-1,3-dione | —— | C15H14N6O2 | 310.315 |
—— | 1,3-dimethyl-2,4-dioxo-7-phenoxymethyl-1,2,3,4,6,7-hexahydrooxazolido<2,3-f>purine | 78960-54-0 | C16H16N4O4 | 328.327 |
—— | 4-[7-(2-Butynyl)-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl]piperazine-1-carboxylic acid tert-butyl ester | 586408-02-8 | C20H28N6O4 | 416.48 |
—— | 1,3,7-trimethyl-8-(2-nitrobenzylsulfonyl)-1H-purine-2,6(3H,7H)-dione | —— | C15H15N5O6S | 393.38 |
—— | 2,4,7-Trimethyl-6-pyridin-2-ylpurino[7,8-a]imidazole-1,3-dione | —— | C15H14N6O2 | 310.315 |