type-4

Apremilast (CC-10004) (CC-10004) is a potent and orally active PDE4 (IC50=74 nM) with anti-inflammation activities.

PCO371 (2,4-Imidazolidinedione, 1-(3,5-dimethyl-4-(2-((4-oxo-2-(4-(trifluoromethoxy)phenyl)-1,3,8-triazaspiro(4.5)dec-1-en-8-yl)sulfonyl)ethyl)phenyl)-5,5-dimethyl-) is an orally active full agonist of parathyroid hormone receptor 1. It has no effect on PTH type 2 receptor.

Empagliflozin (BI 10773) is an SGLT-2 inhibitor (IC50=3.1 nM) that is potent and selective, with more than 300-fold selectivity for SGLT-1/4/5/6. Empagliflozin is used for the treatment of type 2 diabetes.

CFTR corrector 4 is a potent and orally available transmembrane conductance regulator (CFTR) for cystic fibrosis and is a potent (R,R) type active enantiomer. CFTR corrector 4 increases CFTR levels on the cell surface and is a potential compound for the study of cystic fibrosis.

EGFR-IN-1 hydrochloride is an irreversible and specific inhibitor of L858R T790M mutant EGFR, with 100-fold selectivity over wild-type EGFR. It exhibits potent antitumor and antiproliferative activity in H1975 cells and mutant HCC827 cells with IC50s of 4 and 28 nM, respectively.

RIPK1-IN-4 is a potent and selective type II kinase receptor interacting protein 1 (RIP1) kinase inhibitor and binds to a DLG-out inactive form of RIP1 (IC50s of 16 nM and 10 nM for RIP1 and ADP-Glo kinase).

Trk-IN-4 (PF-6683324) is a potent pan-Trk inhibitor with IC50 = 1.1~2.6 nM for TrkA TrkB TrkC and antinociceptive effects. It is also a selective type II PTK6 inhibitor with IC50 = 76 nM and has antitumor effects.

Cameglipti, a dipeptidyl peptidase IV (DPP-4) inhibitor, is used potentially for the treatment of type 2 diabetes.

Imigliptin (KBP 3853) is a novel dipeptidyl peptidase-4 inhibitor for the study of type 2 diabetes.

TS-021 is a selective dipeptidyl peptidase 4 (DPP-4) inhibitor with antidiabetic activity for the study of type 2 diabetes.

Renzapride (BRL 24924) is a mixed 5-hydroxytryptamine type 4 (5-HT4) agonist and 5-HT3 receptor antagonist.Renzapride can be used in the study of constipation-predominant irritable bowel syndrome (C-IBS).

NSC-697923 (2-[(4-methylphenyl)sulfonyl]-5-nitrofuran), a potent inhibitor of UBE2N (ubiquitin-conjugating enzyme E2 N, Ubc13), exhibits its role in inducing cell death in neuroblastoma (NB) cells through two distinct mechanisms. In p53 wild-type NB cells, NSC-697923 promotes the nuclear importation of p53, thereby triggering cell death. Meanwhile, in p53 mutant NB cells, NSC-697923 activates the JNK-mediated apoptotic pathway, leading to cell death. Additionally, NSC-697923 inhibits DNA damage and NF-κB signaling, further contributing to its antitumor activity.

Denagliptin is a small molecule dipeptidyl peptidase IV (DPP-4) inhibitor for the treatment of endocrine Ü metabolic diseases and can be used in the study of type 2 diabetes.

Sitagliptin (MK0431), a new oral hypoglycemic (anti-diabetic drug), is a new dipeptidyl peptidase-4 (DPP-4) inhibitor. This enzyme-inhibiting drug is used either alone or in combination with metformin or thiazolidinedione for treatment of type 2 diabetes mellitus. The drug can competitively inhibit a protein enzyme and DPP-4, that leads to an incremental amount of active incretins (GLP-1 and GIP), the diminished amount of release of glucagon and increased release of insulin.

Hexylresorcinol (4-Hexylresorcinol) is a substituted dihydroxybenzene utilized topically as an antiseptic for minor skin infection treatment.

1-Octanol, a saturated fatty alcohol, functions as an inhibitor of T-type calcium channels (T-channels), showing an inhibitory concentration (IC50) of 4 μM for native T-currents[1]. Additionally, 1-Octanol is recognized for its potential as a biofuel, possessing diesel-like properties[2].

Roflumilast (APTA 2217) is an orally available, long-acting inhibitor of phosphodiesterase (PDE) type 4 (PDE4), with anti-inflammatory and potential antineoplastic activities. Upon administration, roflumilast and its active metabolite roflumilast N-oxide selectively and competitively bind to and inhibit PDE4, which leads to an increase of both intracellular levels of cyclic-3', 5'-adenosine monophosphate (cAMP) and cAMP-mediated signaling.

Cisapride (R 51619) is a serotonin type 4 (5-HT4) receptor agonists are potent prokinetic agents that act on serotonin receptors in the intestine and promote intestinal peristalsis, increase gastric emptying and decrease esophageal reflux.

Trelagliptin succinate (SYR-472 succinate) is a long-acting inhibitor of dipeptidyl peptidase-4 (DPP-4), being developed for the treatment of type 2 diabetes (T2D).

Desaminotyrosine (3-(4-Hydroxyphenyl)propionic acid) is a microbially associated metabolite. Desaminotyrosine protects from influenza through augmentation of type I interferon signaling.

1. Octyl Gallate is an antioxidant approved by the US Food and Drug Administration (FDA) as a food additive. 2. Octyl Gallate has antimetastatic activity. 3. Octyl Gallate shows antimicrobial activity against H. pylori, with a minimum inhibitory concentration (MIC) value of 125 ug/mL. 4. Combination therapy with octyl gallate and ferulic acid improves cognition and neurodegeneration in a transgenic mouse model of Alzheimer's disease.5. Octyl Gallate is a potential anticancer agent, it exhibited decreased MCF-7 & MDA-MB-231 survival and induced apoptosis, with IC50 value of 40 uM. 6. Octyl gallate (Octyl 3,4,5-trihydroxybenzoate) has antiviral activity, it shows an inhibitory effect on the growth of herpes simplex virus type 1 (HSV-1) in HEp-2 or Vero cells. 7. Octyl gallate shows antifungal activity against Saccharomyces cerevisiae ATCC7754 and Zygosaccharomyces bailii ATCC 60483.

Pyrrole-2-carboxylic acid (Minaline) was first identified as a degradation product of sialic acids, then as a derivative of the oxidation of the D-hydroxyproline isomers by mammalian D-amino acid oxidase. The latter relationship results from the lability of the direct oxidation product, A'-pyrroline-4-hydroxy-2-carboxylic acid, which loses water spontaneously to form the pyrrole. A similar reaction is catalyzed by the more specific allohydroxy-D-proline oxidase of Pseudomonas. In whole animal observations, pyrrole-2-carboxylate (PCA) ' was identified in rat or human urine after administration of the D-isomers of hydroxyproline, a finding ascribable to the action of D-amino acid oxidase. Urinary excretion of N-(pyrrole-2-carboxyl) glycine has been reported in a 5-year-old affected with type II hyperprolinemia; The child has mild developmental delay, recurrent seizures of the grand mal type and EEG alterations.

4-Hydroxyphenylpyruvic acid is an enzyme inhibitor.4-Hydroxyphenylpyruvic acid (4-HPPA) is a keto acid that is involved in the tyrosine catabolism pathway. It is a product of the enzyme (R)-4-hydroxyphenyllactate dehydrogenase (EC 1.1.1.222) and is formed during tyrosine metabolism. The conversion from tyrosine to 4-HPPA is catalyzed by tyrosine aminotransferase. Additionally, 4-HPPA can be converted to homogentisic acid which is one of the precursors to ochronotic pigment. The enzyme 4-hydroxyphenylpyruvic acid dioxygenase (HPD) catalyzes the reaction that converts 4-hydroxyphenylpyruvic acid to homogentisic acid. A deficiency in the catalytic activity of HPD is known to lead to tyrosinemia type III, an autosomal recessive disorder characterized by elevated levels of blood tyrosine and massive excretion of tyrosine derivatives into urine. It has been shown that hawkinsinuria, an autosomal dominant disorder characterized by the excretion of 'hawkinsin,' may also be a result of HPD deficiency . Moreover, 4-hydroxyphenylpyruvic acid is also found to be associated in phenylketonuria, which is also an inborn error of metabolism. There are two isomers of HPPA, specifically 4HPPA and 3HPPA, of which 4HPPA is the most common.

4-Aminobenzamidine dihydrochloride (p-Aminobenzamidine dihydrochloride) is a strong trypsin inhibitor and a relatively weak inhibitor of urokinase type plasminogen activator (uPA) (K i =82 μM). 4-Aminobenzamidine can inhibit growth of a human prostate tumor in SCID mice [1] [2].