A variety of long-chain fatty acylamino analogs of N-acetylmuramoyl-L-alanyl-D-isoglutamine (MDP), such as N-(acyl)muramoyl-dipeptides (1) and N-acetyl-6-(acylamino)-6-deoxymuramoyl-dipeptides (2), were synthesized to examine their immunological activities. All the N-(acyl)muramoyl-L-alanyl-D-isoglutamines (1) were active as adjuvant on the induction of delayed-type hypersensitivity to azobenzenearsonate-N-acetyl-L-tyrosine in guinea pigs. N-(3-Hydroxy-2-tetradecyloctadecanoylamino)muramoyl-L-alanyl-D-isoglutamine (1d) and N-acetyl-6-deoxy-6-(3-hydroxy-2-docosylhexacosanoylamino)murarnoyl-L-alanyl-, -L-valyl-, and -L-seryl-D-isoglutamines (2) showed antitumor activity by suppressing tumor (Meth-A fibrosarcoma) growth in syngeneic BALB/c mice.
研究人员合成了多种 N-乙酰基缪拉莫伊-L-丙
氨酰-D-异谷
氨酰胺(MDP)的长链脂肪酰
氨基类似物,如 N-(酰基)缪拉莫伊二肽(1)和 N-乙酰基-6-(酰
氨基)-6-脱氧缪拉莫伊二肽(2),以考察它们的免疫活性。所有 N-(酰基)喃甲酰-L-丙
氨酰-D-异谷
氨酸(1)作为佐剂对诱导豚鼠对
偶氮苯胂酸-
N-乙酰-L-酪氨酸的迟发型超敏反应均有活性。N-(3-羟基-2-
十四烷基十八碳酰
氨基)喃甲酰-L-丙
氨酰-D-异谷
氨酰胺(1d)和 N-乙酰基-6-脱氧-6-(3-羟基-2-
二十二烷基六碳酰
氨基)喃甲酰-L-丙
氨酰-L-缬
氨酰-和 N-乙酰基-6-脱氧-6-(3-羟基-2-
二十二烷基六碳酰
氨基)喃甲酰-L-丙
氨酰-D-异谷
氨酰胺(1d)对豚鼠迟发型超敏反应的诱导具有活性、-L-缬
氨酰-和-L-丝
氨酰-D-异谷
氨酰胺(2)通过抑制合成 BALB/c 小鼠体内肿瘤(Meth-A 纤维肉瘤)的生长而显示出抗肿瘤活性。