In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Design and synthesis of new pyranoquinolinone heteroannulated to triazolopyrimidine of potential apoptotic antiproliferative activity, published in 2020-12-31, which mentions a compound: 3326-71-4, mainly applied to pyranoquinolinone triazolopyrimidine apoptosis antiproliferative formimidic acid; Antiproliferative; Apoptosis; Caspase; Formimidic acid; Pyrano[3,2-c]quinoline; Triazolopyrimidine, Application In Synthesis of 2-Furoic hydrazide.
Pyrano[3,2-c]quinoline derivatives have been synthesized and utilized to obtain various new hetero-annulated triazolopyrimidine, containing quinoline, pyran, 1,2,4-triazine and pyrimidine in good yields. Newly synthesized compounds have been characterized by spectral data and elemental anal. Most of the synthesized compounds showed moderate to weak antiproliferative activity on most cancer cell lines, especially leukemia and breast cancer cell lines. The open chain formimidic acid Et ester is slightly more potent than hetero-annulated systems. The most active compounds were further investigated for caspase activation, Bax activation and Bcl-2 down regulation compared to doxorubicin as a standard, and indeed exhibited mainly cell cycle arrest at the Pre-G1 and G2/M phases. The transcription effects of 5a and 5b on the p53 were assessed and compared with the reference doxorubicin. The results revealed an increase of 12-19 in p53 level compared to the test cells and that p53 protein level of 5a and 5b was significantly inductive (991, and 639 pg/mL, resp.) in relation to doxorubicin (1263 pg/mL).
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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics