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【结 构 式】 
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【分子编号】61632 【品名】2,2-dimethyl-1,3-dioxane-4,6-dione 【CA登记号】 |
【 分 子 式 】C6H8O4 【 分 子 量 】144.12712 【元素组成】C 50% H 5.59% O 44.4% |
合成路线1
该中间体在本合成路线中的序号：(V)The condensation of phthalic anhydride (I) with glycine (II) by heating at 160 C gives 2-phthalimidoacetic acid (III), which is treated with refluxing SOCl2 to yield the acetyl chloride (IV). The condensation of (IV) with 2-13C-labeled Meldrum's acid (V) by means of pyridine in dichloromethane, followed by a treatment with refluxing ethanol affords 4-phthalimidoaetoacetic acid ethyl ester (VI). This compound is condensed with 2-bromoacetic acid ethyl ester (VII) by means of NaH in dimethoxyethane to provide labeled 2-(2-phthalimidoacetyl)succinic acid diethyl ester (VIII). Finally, the ester is treated with HCl in refluxing acetic acid to give the target labeled aminolevulinic acid.
| 【1】 Kurumaya, K.; Okazaki, T.; Seido, N.; Akasaka, Y.; Kawajiri, Y.; Kajiwara, M.; Kondo, M.; Facile synthesis of delta-aminolevulinic acid (ALA) regioselectively labeled with 13C and direct observation of enzymatic transformation from ALA to porphobilinogen (PBG). J Label Compd Radiopharm 1989, 27, 2, 217. |
| 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) | 11900 | 2-Benzofuran-1,3-dione;1,2-Benzenedicarboxylic Anhydride;1,2-BENZENE DICARBOXYLIC ACID ANHYDRIDE;1,2-BENZENEDICARBONIC ACID, ANHYDRIDE;1,3-DIOXOPHTHALAN;1,3-ISOBENZOFURANDIONE;o-phthalic anhydride; Phthalic anhydride | 85-44-9 | C8H4O3 | 详情 | 详情 |
| (II) | 20436 | glycine | 56-40-6 | C2H5NO2 | 详情 | 详情 |
| (III) | 10284 | N-Phthaloylglycine; 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)acetic acid | 4702-13-0 | C10H7NO4 | 详情 | 详情 |
| (IV) | 10278 | 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)acetyl chloride | 6780-38-7 | C10H6ClNO3 | 详情 | 详情 |
| (V) | 14738 | Meldrum's acid; 2,2-dimethyl-1,3-dioxane-4,6-dione；Malonic acid cyclic isopropylidene ester | 2033-24-1 | C6H8O4 | 详情 | 详情 |
| (V) | 61632 | 2,2-dimethyl-1,3-dioxane-4,6-dione | C6H8O4 | 详情 | 详情 | |
| (VI) | 61596 | ethyl 4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-oxobutanoate | C14H13NO5 | 详情 | 详情 | |
| (VI) | 61633 | ethyl 4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-oxobutanoate | C14H13NO5 | 详情 | 详情 | |
| (VII) | 16640 | Ethyl 2-bromoacetate; Ethyl bromoacetate | 105-36-2 | C4H7BrO2 | 详情 | 详情 |
| (VIII) | 61634 | diethyl 2-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)acetyl]succinate | C18H19NO7 | 详情 | 详情 | |
| (VIII) | 64690 | diethyl 2-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)acetyl]succinate | C18H19NO7 | 详情 | 详情 |