|
【结 构 式】 
|
【分子编号】59291 【品名】3-(Chlorosulfonyl)benzoic acid; m-(Chlorosulfonyl)benzoic acid 【CA登记号】4025-64-3 |
【 分 子 式 】C7H5ClO4S 【 分 子 量 】220.633 【元素组成】C 38.11% H 2.28% Cl 16.07% O 29.01% S 14.53% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号：(II)The title compound is prepared by two alternative methods. Sulfonation of benzoic acid (I) with hot chlorosulfonic acid affords 3-carboxybenzenesulfonyl chloride (II). After conversion of (II) to the pyridine complex, coupling with prednisolone (III) produces the target 21-sulfobenzoate ester, which is finally isolated as the title sodium salt by treatment with aqueous NaOH.
| 【1】 Girault, P.; Allais, A. (Aventis Pharma SA); Process for the preparation of 21-m-sulfo benzoates of DELTA1,4-dehydrocorticosteroids. US 3032568 . |
| 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) | 10202 | Benzoic acid | 65-85-0 | C7H6O2 | 详情 | 详情 |
| (II) | 59291 | 3-(Chlorosulfonyl)benzoic acid; m-(Chlorosulfonyl)benzoic acid | 4025-64-3 | C7H5ClO4S | 详情 | 详情 |
| (III) | 13538 | (8S,9S,10R,11S,13S,14S,17R)-17-Glycoloyl-11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one; Prednisolone | 50-24-8 | C21H28O5 | 详情 | 详情 |
Extended Information