Orally Active GPIIb/IIIa Antagonists. Synthesis and Biological Activities of Masked Amidines as Prodrugs of 2-[(3S)-4-[(2S)-2-(4-Amidinobenzoylamino)-3-(4-methoxyphenyl)propanoyl]-3-(2-methoxy-2-oxoethyl)-2-oxopiperazinyl] acetic Acid.
作者:Shuji KITAMURA、Hideto FUKUSHI、Toshio MIYAWAKI、Masaki KAWAMURA、Zen-ichi TERASHITA、Takehiko NAKA
DOI:10.1248/cpb.49.268
日期:——
To improve the in vivo potency of the potent GPIIb/IIIa antagonist 2-[(3S)-4-[(2S)-2-(4-amidinobenzoylamino)-3-(4-methoxyphenyl)propanoyl]-3-(2-methoxy-2-oxoethyl)-2-oxopiperazinyljacetic acid (4), the amidino group was converted to an oxadiazole ring, thiadiazole ring or substituted amidoxime group. These groups were expected to be metabolized to an amidino group in vivo. The compounds synthesized
提高有效的GPIIb / IIIa拮抗剂2-[((3S)-4-[(2S)-2-(4-4-基苯甲酰氨基)-3-(4-甲氧基苯基)丙酰基] -3-(2-甲氧基-2-氧代乙基)-2-氧代哌嗪基j乙酸(4),将mid基转化为恶二唑环,噻二唑环或取代的mid肟基。预期这些组在体内被代谢为an基组。评价合成的化合物抑制离体腺苷5'-二磷酸(ADP)诱导的豚鼠血小板聚集的能力。在所研究的化合物中,甲氧羰基氧基am8a表现出最有效的离体抑制活性,口服后起效快,作用时间长。