145448-31-3

Upstream product

• 40493-18-3 4-chloro-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine 
• 62-53-3 aniline 
• 14346-24-8 8-thia-4,6-diazatricyclo[7.4.0.0[2,7]]trideca-1⁽⁹⁾,2⁽⁷⁾,3,5-tetraen-3-ol 
• 4506-71-2 ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 
• 4651-91-6 3-cyano-2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene 
• 108354-78-5 methyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 
• 14346-24-8 5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one 
• 108-94-1 cyclohexanone 

Relevant academic research and scientific papers

Subtle modifications to a thieno[2,3-d]pyrimidine scaffold yield negative allosteric modulators and agonists of the dopamine D2 receptor

We recently described a structurally novel series of negative allosteric modulators (NAMs) of the dopamine D2 receptor (D2R) based on thieno[2,3-d]pyrimidine 1, showing it can be structurally simplified to reveal low molecular weight, fragment-like NAMs that retain robust negative cooperativity, such as 3. Herein, we report the synthesis and functional profiling of analogues of 3, placing specific emphasis on examining secondary and tertiary amino substituents at the 4-position, combined with a range of substituents at the 5/6-positions (e.g. aromatic/aliphatic carbocycles). We identify analogues with diverse pharmacology at the D2R including NAMs with sub-μM affinity (9h) and, surprisingly, low efficacy partial agonists (9d and 9i).

A Microwave-Enhanced Synthesis and Biological Evaluation of N-Aryl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-amines

A series of N-aryl-5,6,7,8-tetra-hydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-amines were synthesized in moderate to good yield by using a microwave-enhanced conditions. The selected compounds were evaluated for their cytotoxic effects (IC50 values) on human pulmonary carcinoma (A549), murine BALB/c spontaneous colon adenocarcinoma (CT26) and human hepatocellular liver carcinoma (HepG2) cell lines in vitro. Amongst these compounds, one compound was found to have the better cytotoxic activity with reference to the standard Erlotinib hydrochloride (TarcevaTM) against A549 (IC50 = 16.06 ± 0.09 μM) and HepG2 (IC50 = 15.01 ± 0.31 μM) cell lines. Especially, two compounds showed best cytotoxic effects against CT26 (IC50 = 11.38 ± 0.44 μM) and HepG2 (IC50 = 8.51 ± 0.52 μM) cell lines, respectively. The preliminary structure-activity relationships were disclosed and the thieno[2,3-d]pyrimidine skeleton could be exploited to potential antitumor agents in the future.

Novel dual use of formamide-POCl3 mixture for the efficient, one-pot synthesis of condensed 2 H-pyrimidin-4-amine libraries under microwave irradiation

The novel dual use of formamide-POCl3 mixture for the incorporation of a C-N fragment to form the pyrimidine nucleus and its subsequent chlorination in an efficient, one-pot synthesis of potentially bioactive condensed 2H-pyrimidin-4-amine libraries under

Synthesis and study of antiproliferative activity of novel thienopyrimidines on glioblastoma cells

The receptor tyrosine kinases (for example EGFR, PDGFR, VEGFR) are a transmembrane protein family which plays a crucial role in tumor growth, survival, metastasis dissemination and angiogenesis. During the past 10 years, many tyrosine kinase inhibitors (T

THERAPEUTIC APPLICATION OF TRICICLIC AROMATIC AND SATURATED BENZO(4,5)THIENO-(2,3-D)PYRIMIDINE DERIVATES, AS WELL AS THEIR THERAPEUTICALLY ACCEPTABLE SALTS

The subject of the invention is therapeutic application of tricyclic aromatic and saturated benzo[4,5]thieno[2,3-d]pyrimidine derivatives and their therapeutically acceptable salts. The compounds according to the invention is used particularly as active agent of therapeutic preparations of tyrosine-kinase inhibiting action.

Microwave-based synthesis of novel thienopyrimidine bioisosteres of gefitinib

A series of novel 2-unsubstituted 4-(substituted)anilinothieno[2,3-d]pyrimidines is synthesized through the chlorination of the corresponding 2-unsubstituted-thieno[2,3-d]-pyrimidin-4-ones, followed by the nucleophilic displacement of the 4-Cl group of 9, with a variety of anilines. All four steps of this synthesis involve microwave irradiation (MWI) and the entire synthesis requires only 2 h.