苯的代谢物S-苯巯基尿酸可作为生物标志物,可通过气相色谱(GC)、高效液相色谱(HPLC,采用UV或荧光检测)、气相色谱-质谱联用(GC-MS)、液相色谱-质谱/质谱联用(LC-MS/MS)或免疫测定方法进行鉴定。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | S-(4-Bromophenyl)mercapturic acid | 126253-78-9 | C11H12BrNO3S | 318.191 |
—— | (R)-2-acetamido-3-((4-bromophenyl)thio)propanoic acid | 21462-47-5 | C11H12BrNO3S | 318.191 |
S-苯基-L-半胱氨酸 | S-phenyl-L-cysteine | 34317-61-8 | C9H11NO2S | 197.258 |
—— | S-(p-bromophenyl)-L-cysteine | 68724-10-7 | C9H10BrNO2S | 276.154 |
N-乙酰-L-半胱氨酸 | N-acetylcystein | 616-91-1 | C5H9NO3S | 163.197 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
S-苯基-L-半胱氨酸 | S-phenylcysteine | 5437-52-5 | C9H11NO2S | 197.258 |
A new method for the preparation of aromatic, S-substituted derivatives of N-acetyl-L- cysteine is described. The method involves nucleophilic substitution of aromatic iodides by N-acetyl-L- cysteine in the presence of copper(I) iodide, and provides the first example of nucleophilic substitution of unactivated aromatic halides by N-acetyl-L- cysteine . The method has been used to prepare N-acetyl-S-(2-thienyl)-L- cysteine and N-acetyl-S-(3-thienyl)-L- cysteine from 2-iodothiophen and 3-iodothiophen respectively. In addition, the method has been successfully applied to iodobenzene and 1-iodonaphthalene. A product yield of about 30% was obtained in each case.