作者:Shumpei Sakakibara、Yoshibumi Nobuhara、Yasutsugu Shimonishi、Reiko Kiyoi
DOI:10.1246/bcsj.38.120
日期:1965.1
leucylglycinamide (IX) was synthesized by the step-wise elongation method, and highly potent oxytocin was obtained from IX by treatment not only with sodium in liquid ammonia, but also with boiling trifluoroacetic acid, followed by the usual aeration procedure. It was demonstrated during the reactions that the newly introduced S-p-methoxybenzyl group could be cleaved more easily than the usual S-benzyl
合成了 N-羧基苯甲氧基-S-甲氧基苄基-L-半胱氨酰-L-酪氨酰-L-异亮氨酰-L-谷氨酰胺酰-L-天冬酰胺基-Sp-甲氧基苄基-L-半胱氨酰-L-脯氨酰-L-亮氨酰甘氨酰胺(IX)通过逐步延伸法,不仅用液氨中的钠处理,而且用沸腾的三氟乙酸处理,然后按照通常的曝气程序,从 IX 获得高效催产素。在反应过程中证明,新引入的 Sp-甲氧基苄基比通常的 S-苄基更容易裂解,并且新的 S-保护基团可用于制备复杂的半胱氨酸肽。