AMP Deaminase Inhibitors. 3. SAR of 3-(Carboxyarylalkyl)coformycin Aglycon Analogues
摘要:
N3-Substituted coformycin aglycon analogues with improved AMP deaminase (AMPDA) inhibitory potency are described. Replacement of the 5-carboxypentyl substituent in the lead AMPDA inhibitor 3-(5-carboxypentyl)-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (2) described in the previous article with various carboxyarylalkyl groups resulted in compounds with 10-100-fold improved AMPDA inhibitory potencies. The optimal N3 substituent had m-carboxyphenyl with a two-carbon alkyl tether. For example, 3-[2-(3-carboxy-5-ethylphenyl)-ethyl]-3,6,7,8-tetrahydroimidazo[4,5-d] [1,3]diazepin-8-ol (43g) inhibited human AMPDA with a K-i = 0.06 mu M. The compounds within the series also exhibited >1000-fold specificity for AMPDA relative to adenosine deaminase.
AMP Deaminase Inhibitors. 3. SAR of 3-(Carboxyarylalkyl)coformycin Aglycon Analogues
摘要:
N3-Substituted coformycin aglycon analogues with improved AMP deaminase (AMPDA) inhibitory potency are described. Replacement of the 5-carboxypentyl substituent in the lead AMPDA inhibitor 3-(5-carboxypentyl)-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (2) described in the previous article with various carboxyarylalkyl groups resulted in compounds with 10-100-fold improved AMPDA inhibitory potencies. The optimal N3 substituent had m-carboxyphenyl with a two-carbon alkyl tether. For example, 3-[2-(3-carboxy-5-ethylphenyl)-ethyl]-3,6,7,8-tetrahydroimidazo[4,5-d] [1,3]diazepin-8-ol (43g) inhibited human AMPDA with a K-i = 0.06 mu M. The compounds within the series also exhibited >1000-fold specificity for AMPDA relative to adenosine deaminase.
Synthesis and Biological Activity of New 3-Hydroxy-3-methylglutaryl-CoA Synthase Inhibitors: 2-Oxetanones with a Side Chain Mimicking the Extended Structure of 1233A.
Structural analogs of 1233A, a microbial metabolite inhibiting 3-hydroxy-3- methylglutaryl coenzyme A (HMG-CoA) synthase, were designed and synthesized. The 2-oxetanone moiety was left intact. All analogs prepared were tested for inhibition of HMG-CoA synthase activity and sterol synthesis in mouse liver and for effect on serum triglyceride levels. Of these analogs, trans-4-[2-[3-(7-carboxy-2- nap