CAS: 1825-23-6; Pentachlorobenzoylchloride

上下游产品

hexachloro-phthalide perchlorodiphenylmethyl radical perchlorobenzoic acid hexachlorotroponePentachlorbenzoesaeure-methylester Pentachlorbenzoesaeureanhydrid 1,3-dichloro-2,4,6-trifluorobenzene 2.6-Dichlor-3.5-difluor-anisol

Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于氯体系中,化学反应生成五氯苯甲酰氯
参考文献:Kirpal; Kunze,Chemische Berichte,1929,Vol. 62,P. 2103,2105
标题:Kirpal; Kunze,Chemische Berichte,1929,Vol. 62,P. 2103,2105

专利信息

专利号:US-6077962-A
优先权日:1998-12-24
标题 :N-3, 3-dimethylbutyl-L-aspartic acid and esters thereof, the process of preparing the same, and the process for preparing N-(N-(3,3-dimethylbutyl) -α L-aspartyl)-L- phenylalanine 1-methyl ester therefrom
发明人：PRAKASH INDRA; CHAPEAU MARIE-CHRISTINE D
权利人:NUTRASWEET CO
摘要:This invention relates to the chemical synthesis of N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester using peptide coupling methods. The coupling reaction is conducted by condensation of an activated derivative of novel N-neohexyl-L-aspartic acid with L-phenylalanine or L-phenylalanine methyl ester or by enzymatic coupling of N-neohexyl-L-aspartic acid with L-phenylalanine or L-phenylalanine methyl ester. This invention also relates to novel N-(3,3-dimethylbutyl)-L-aspartic acid, derivatives thereof and the preparation thereof. The activated derivative of N-neohexyl-L-aspartic acid may be an anhydride, mixed anhydride, active ester or an intermediate activated derivative thereof.