Methods: Subericacid was selected as the start material, and the SAHA was obtained through condensation, activation and ammoniated.
方法：以辛二酸为起始原料，经缩合、活化、氨解合成SAHA。
2
Preferably, the carboxylic acid raw material contains glutaric acid, adipic acid, pimelic acid, subericacid, sebacic acid and 1,9-nanomethylenedicarboxylic acid in a total amount of 5 mass% or less.