Alogliptin does not undergo extensive metabolism. Two minor metabolites that were detected are N-demethylated alogliptin (<1% of parent compound) and N-acetylated alogliptin (<6% of parent compound). The N-demethylated metabolite is active and an inhibitor of DPP-4. The N-acetylated metabolite is inactive. Cytochrome enzymes that are involved with the metabolism of alogliptin are CYP2D6 and CYP3A4 but the extent to which this occurs is minimal. Approximately 10-20% of the dose is hepatically metabolized by cytochrome enzymes.
Two minor metabolites were detected following administration of an oral dose of [14C] alogliptin, N-demethylated, M-I (<1% of the parent compound), and N-acetylated alogliptin, M-II (<6% of the parent compound). M-I is an active metabolite and is an inhibitor of DPP-4 similar to the parent molecule; M-II does not display any inhibitory activity toward DPP-4 or other DPP-related enzymes. In vitro data indicate that CYP2D6 and CYP3A4 contribute to the limited metabolism of alogliptin. Alogliptin exists predominantly as the (R)-enantiomer (>99%) and undergoes little or no chiral conversion in vivo to the (S)-enantiomer. The (S)-enantiomer is not detectable at the 25 mg dose.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
毒性总结
鉴别人和使用:阿洛格列汀是一种二肽基肽酶-4(DPP-4)抑制剂,作为饮食和运动的辅助手段,用于改善2型糖尿病成年患者的血糖控制;但不用于治疗1型糖尿病或糖尿病酮症酸中毒。人体暴露和毒性:在临床试验中,接受每日25毫克阿洛格列汀的患者报告的不良反应包括胰腺炎(0.2%)、过敏反应(0.6%)、血清病的一次事件、鼻咽炎(4.4%)、低血糖(1.5%)、头痛(4.2%)和上呼吸道感染(4.2%)。在老年患者中,阿洛格列汀引起的低血糖发生率增加到5.4%。在上市后,接受阿洛格列汀治疗的患者报告了急性胰腺炎和严重的过敏反应。这些反应包括过敏性休克、血管性水肿和严重的皮肤不良反应,包括史蒂文斯-约翰逊综合征。在接受Nesina治疗的患者的上市后报告中,有致命和非致命的肝功能衰竭。动物研究:在大鼠的生育研究中,阿洛格列汀在最高500毫克/千克的剂量下,对早期胚胎发育、交配或生育没有不良影响,或者是基于血浆药物暴露(AUC)的大约172倍的临床剂量。在器官形成期给予怀孕兔和大鼠的阿洛格列汀在最高200毫克/千克和500毫克/千克的剂量下不具有致畸性,或者是基于血浆药物暴露(AUC)的149倍和180倍的临床剂量。从妊娠第6天到哺乳第20天给予怀孕大鼠的阿洛格列汀最高250毫克/千克(大约是临床暴露的95倍基于AUC)的剂量,没有对发育中的胚胎造成伤害,也没有对后代的生长和发展产生不利影响。在给怀孕大鼠口服给药后,观察到阿洛格列汀转移到胎儿。阿洛格列汀以2:1的比例分泌在哺乳大鼠的乳汁中。在小鼠给药50、150或300毫克/千克阿洛格列汀两年后,或直到大约是最大推荐临床剂量25毫克的51倍基于AUC暴露下,没有观察到与药物相关的肿瘤。阿洛格列汀在 Ames 测试中使用 S. typhimurium 和 E. coli 或小鼠淋巴瘤细胞的细胞遗传学分析中,无论是否经过代谢激活,都不是致突变或致裂变的。阿洛格列汀在小鼠体内微核研究中呈阴性。
IDENTIFICATION AND USE: Alogliptin is a dipeptidyl peptidase-4 (DPP-4) inhibitor indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus; but not for treatment of type 1 diabetes or diabetic ketoacidosis. HUMAN EXPOSURE AND TOXICITY: During clinical trials patients receiving alogliptin 25 mg daily reported adverse reactions including pancreatitis (0.2%), hypersensitivity reactions (0.6%), a single event of serum sickness, nasopharyngitis (4.4%), hypoglycemia (1.5%), headache (4.2%) and upper respiratory tract infection (4.2%). In elderly patients the incidence of hypoglycemia with alogliptin increased to 5.4%. Postmarketing, patients taking alogliptin reported acute pancreatitis and serious hypersensitivity reactions. These reactions include anaphylaxis, angioedema and severe cutaneous adverse reactions, including Stevens-Johnson syndrome. There have been postmarketing reports of fatal and nonfatal hepatic failure in patients taking Nesina. ANIMAL STUDIES: In a fertility study in rats, alogliptin had no adverse effects on early embryonic development, mating or fertility at doses up to 500 mg/kg, or approximately 172 times the clinical dose based on plasma drug exposure (AUC). Alogliptin administered to pregnant rabbits and rats during the period of organogenesis was not teratogenic at doses of up to 200 mg/kg and 500 mg/kg, or 149 times and 180 times, respectively, the clinical dose based on plasma drug exposure (AUC). Doses of alogliptin up to 250 mg/kg (approximately 95 times clinical exposure based on AUC) given to pregnant rats from gestation Day 6 to lactation Day 20 did not harm the developing embryo or adversely affect growth and development of offspring. Placental transfer of alogliptin into the fetus was observed following oral dosing to pregnant rats. Alogliptin is secreted in the milk of lactating rats in a 2:1 ratio to plasma. No drug-related tumors were observed in mice after administration of 50, 150 or 300 mg/kg alogliptin for two years, or up to approximately 51 times the maximum recommended clinical dose of 25 mg, based on AUC exposure. Alogliptin was not mutagenic or clastogenic, with and without metabolic activation, in the Ames test with S. typhimurium and E. coli or the cytogenetic assay in mouse lymphoma cells. Alogliptin was negative in the in vivo mouse micronucleus study.
Liver injury due to alogliptin is rare. In large clinical trials, serum enzyme elevations were uncommon (1% to 3%) and no greater than with comparator arms or placebo. In these studies, no instances of clinically apparent liver injury with jaundice were reported. Since licensure, instances of serum enzyme elevations and acute hepatitis including acute liver failure attributed to alogliptin have been reported to the FDA and the sponsor. These cases have not been reported in the literature and the clinical features have not been defined. Cases of clinically apparent acute liver injury have been reported with other DPP-4 inhibitors such as sitagliptin and saxagliptin. The latency to onset was typically within 2 to 12 weeks of starting and the pattern of liver enzyme elevations was usually hepatocellular. Immunoallergic features were often present. Most cases were self-limited in course and rapidly reversed once the medication was stopped.
◉ Summary of Use during Lactation:No information is available on the clinical use of alogliptin during breastfeeding. An alternate drug may be preferred, especially while nursing a newborn or preterm infant. Monitoring of the breastfed infant's blood glucose is advisable during maternal therapy with alogliptin.
◉ Effects in Breastfed Infants:Relevant published information was not found as of the revision date.
◉ Effects on Lactation and Breastmilk:Relevant published information was not found as of the revision date.
When alogliptin is used in combination with an insulin secretagogue (e.g., a sulfonylurea) or insulin, the incidence of hypoglycemia is increased compared with sulfonylurea or insulin monotherapy. Therefore, patients receiving alogliptin may require a reduced dosage of the concomitant insulin secretagogue or insulin to reduce the risk of hypoglycemia.
/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/
The pharmacokinetics of NESINA was also shown to be similar in healthy subjects and in patients with type 2 diabetes. When single, oral doses up to 800 mg in healthy subjects and type 2 diabetes patients are given, the peak plasma alogliptin concentration (median Tmax) occurred 1 to 2 hours after dosing. Accumulation of aloglipin is minimal. The absolute bioavailability of NESINA is approximately 100%. Food does not affect the absorption of alogliptin.
来源:DrugBank
吸收、分配和排泄
消除途径
肾脏排泄(76%)和粪便(13%)。60%至71%的剂量以未改变的药物形式在尿液中排出。
Renal excretion (76%) and feces (13%). 60% to 71% of the dose is excreted as unchanged drug in the urine.
Following a single, 12.5 mg intravenous infusion of alogliptin to healthy subjects, the volume of distribution during the terminal phase was 417 L, indicating that the drug is well distributed into tissues.
The primary route of elimination of (14C) alogliptin-derived radioactivity occurs via renal excretion (76%) with 13% recovered in the feces, achieving a total recovery of 89% of the administered radioactive dose. The renal clearance of alogliptin (9.6 L/hr) indicates some active renal tubular secretion and systemic clearance was 14.0 L/hr.
Fluorosulfuryl Isocyanate Enabled SuFEx Ligation of Alcohols and Amines
作者:Shoujun Sun、Bing Gao、Junyu Chen、K. Barry Sharpless、Jiajia Dong
DOI:10.1002/anie.202105583
日期:2021.9.20
Fluorosulfuryl isocyanate (FSI, FSO2NCO) is established as a reliable bis-electrophilic linker for stepwise attachment of an alcohol bearing module to an amine bearing module and thence a new module RO-C(=O)-NH-SO2-NR′R′′ is created. FSI's isocyanate motif fuses directly and quickly with alcohols and phenols, affording fluorosulfuryl carbamates in nearly quantitative yield. A new reagent and process
氟磺酰异氰酸酯 (FSI, FSO 2 NCO) 被确立为可靠的双亲电连接剂,用于将含醇模块逐步连接至含胺模块,从而形成新模块 RO-C(=O)-NH-SO 2 -NR 'R'' 已创建。 FSI 的异氰酸酯基序直接快速地与醇和酚融合,以几乎定量的产率提供氟磺酰氨基甲酸酯。还开发了一种新的试剂和工艺,可将 FSI 衍生的氟硫酰氨基甲酸酯片段传递给胺。鉴于不同产品的结构非常复杂,步骤 1 所得的 S VI -F 基序非常稳定。在与胺的第 2 步反应中,仅用水即可获得 SN 连接产物的最佳产率。这种“水上”界面反应现象至关重要,揭示了 S VI -F 探针潜在的体内蛋白质共价捕获的潜在反应性,这在当今的药物发现中非常重要。 SuFEx 化学的范围因此大大扩展,并且轻松进入这些磷酸盐样连接应该对跨不同领域的点击化学有用。
Late-Stage Carbon Isotope Exchange of Aryl Nitriles through Ni-Catalyzed C–CN Bond Activation
作者:Sean W. Reilly、Yu-hong Lam、Sumei Ren、Neil A. Strotman
DOI:10.1021/jacs.1c01454
日期:2021.3.31
strategy employs labeled Zn(CN)2 to facilitate enrichment using the nonlabeled parent compound as the starting material, eliminating de novo synthesis for precursor development. A broad substrate scope encompassing multiple pharmaceuticals is disclosed, including the preparation of [14C] belzutifan to illustrate the exceptional functional group tolerance and utility of this labeling approach. Preliminary
描述了使用 Ni 膦催化剂和 BPh 3与芳基、杂芳基和烯基腈进行13 CN 和14 CN 交换的简便一锅法。这种后期碳同位素交换 (CIE) 策略采用标记的 Zn(CN) 2来促进使用未标记的母体化合物作为起始材料的富集,从而消除了前体开发的从头合成。公开了涵盖多种药物的广泛底物范围,包括制备 [ 14 C] belzutifan 以说明这种标记方法的特殊官能团耐受性和实用性。初步实验和计算研究表明路易斯酸 BPh 3对氧化加成步骤并不重要,而是在促进 Ni 上的 CN 交换方面发挥作用。这种 CIE 方法显着减少了制备用于临床开发的14 C 标记示踪剂所涉及的合成步骤和放射性废物。
Novel phenyl-substituted imidazolidines, process for preparation thereof, medicaments comprising said compounds and use thereof
申请人:JAEHNE Gerhard
公开号:US20110178134A1
公开(公告)日:2011-07-21
The invention relates to compounds of formula (I) wherein the groups have stated meanings, and to their physiologically compatible salts. Said compounds are suitable, for example, as anti-obesity drugs and for treating cardiometabolic syndrome.
AZOLOPYRIDIN-3-ONE DERIVATIVES AS INHIBITORS OF LIPASES AND PHOSPHOLIPASES
申请人:Petry Stefan
公开号:US20130157941A1
公开(公告)日:2013-06-20
The present invention relates to azolopyridin-3-one derivatives of the general formula (I) with the meanings specified in the description, to their pharmaceutically usable salts and to their use as drug substances.
BILE ACID RECYCLING INHIBITORS FOR TREATMENT OF GASTROINTESTINAL INFECTIONS
申请人:Lumena Pharmaceuticals, Inc.
公开号:US20150119345A1
公开(公告)日:2015-04-30
Provided herein are methods for treating or preventing gastrointestinal and/or liver infections utilizing bile acid transport inhibitors and/or enteroendocrine peptide enhancing agents and/or FXR agonists. Also provided herein are methods for increasing the levels of an enteroendocrine peptide or hormone in an individual suffering from a gastrointestinal infection or liver infection utilizing bile acid transport inhibitors and/or enteroendocrine peptide enhancing agents and/or FXR agonists.