dhp-1

Meropenem (SM 7338) 是一种具有广谱抗菌活性的碳青霉烯抗生素，对敏感和耐药的淋病奈瑟氏球菌，流感嗜血杆菌和杜克氏杆菌的 MIC 值分别为 0.02-0.06 mg mL，0.03-0.12 mg mL 和 0.015-0.12 mg mL。

Meropenem trihydrate (SM 7338 trihydrate) 是一种碳青霉烯抗生素，具有广谱抗菌活性。它对敏感和耐药的杜克氏杆菌 (MIC 值为 0.015-0.12 mg mL)， 淋病奈瑟氏球菌 (MIC 值为 0.02-0.06 mg mL)和流感嗜血杆菌 (MIC 值为 0.03-0.12 mg mL) 具有活性。

17α,20β-Dihydroxy-4-pregnen-3-one (17α,20β-DHP) is an endogenous, maturation-inducing steroid that stimulates oocyte maturation in females of several teleost species. For example, 1 μg ml of 17α,20β-DHP applied to Persian sturgeon oocytes has been shown to effectively induce germinal vesicle breakdown, an essential step during oocyte maturation.1 Gonadotropin-releasing hormone and the gonadotropins, follicle-stimulating hormone and luteinizing hormone, have been shown to stimulate the production of 17α,20β-DHP either in vivo or in vitro.[2] 17α,20β-DHP has also been reported to influence spermiation by stimulating milt production when administered at 5 mg kg to various male teleosts.[1]

AV-153 free base 是一种 1,4-二氢吡啶(1,4-DHP) 衍生物。AV-153 free base 是一种抗诱变剂，具有抗癌活性。AV-153 free base 可以与胞嘧啶和胸腺嘧啶相互作用，并影响聚 (ADP) 核糖基化。在体外实验中，AV-153 free base 在 DNA 的单链断裂处插入到 DNA 并减少 DNA 损伤，刺激 DNA 修复。

The leguminous shrub,Leucaena leucocephala(Leucaena) is wide‐spread in tropical and subtropical agricultural systems and provides a ready source of protein for livestock. However, the presence of mimosine, a non‐protein, amino acid comprising about 12% of the dry matter in growing tips ofLeucaena, is toxic to animals. Mimosine is degraded rapidly in the rumen to produce 3,4‐dihydroxypyridine (3,4‐DHP) and 2,3‐dihydroxypyridine (2,3‐DHP), both of which remain toxic to animals[1]. 3,4-DHP, as a derivative of the plant amino acid mimosine, is goitrogenic in cattle, sheep, and mice. In contrast to established antithyroid compounds, such as methimazole (MMI) and propylthiouracil (PTU), 3,4-DHP has no SH-group. 3,4-DHP with various concentrations inhibited incorporation of125I into protein in human thyroid slices. It also suppressed the activation of lymphocytes by PHA (phytohaemagglutinin) and PWM (pokeweed mitogen). Suppression with 3,4-DHP was seen at 100 and 1000 μmol L (P< 0.001 vs both PHA and PWM). Those, together with a very low murine bone marrow toxicity, probably related to the absence of an SH-group, make 3,4-DHP a potential antithyroid drug[2].

RIP1 kinase inhibitor 8（Compound 77）是一种高选择性的二氢吡唑（DHP）RIP1激酶抑制剂，其IC50值为20 nM，可有效抑制坏死（necrotic）细胞死亡，并在多种物种中展现出优良的药代动力学属性。