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232277-27-9

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232277-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 232277-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,2,2,7 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 232277-27:
(8*2)+(7*3)+(6*2)+(5*2)+(4*7)+(3*7)+(2*2)+(1*7)=119
119 % 10 = 9
So 232277-27-9 is a valid CAS Registry Number.

232277-27-9Relevant articles and documents

Chemical investigations into the biosynthesis of the gymnastatin and dankastatin alkaloids

Belcher, Bridget P.,Maimone, Thomas J.,Nomura, Daniel K.,Tong, Bingqi

, p. 8884 - 8891 (2021)

Electrophilic natural products have provided fertile ground for understanding how nature inhibits protein function using covalent bond formation. The fungal strainGymnascella dankaliensishas provided an especially interesting collection of halogenated cytotoxic agents derived from tyrosine which feature an array of reactive functional groups. Herein we explore chemical and potentially biosynthetic relationships between architecturally complex gymnastatin and dankastatin members, finding conditions that favor formation of a given scaffold from a common intermediate. Additionally, we find that multiple natural products can also be formed from aranorosin, a non-halogenated natural product also produced byGymnascellasp. fungi, using simple chloride salts thus offering an alternative hypothesis for the origins of these compounds in nature. Finally, growth inhibitory activity of multiple members against human triple negative breast cancer cells is reported.

Synthesis and trypanocide activity of chloro-l-tyrosine and bromo-l-tyrosine derivatives

Pastrana Restrepo, Manuel,Galeano Jaramillo, Elkin,Martínez Martínez, Alejandro,Robledo Restrepo, Sara

, p. 2454 - 2465 (2018/10/02)

Twenty-two halogenated l-tyrosine derivatives were synthesized to examine new substances for the treatment of Chagas disease. The synthesis of these derivatives with different degree of substitution in the amino group with methyl iodide, giving primary, tertiary, and quaternary amino acids. All compounds were tested in vitro against intracellular amastigotes of Trypanosoma cruzi, and the cytotoxicity were evaluated over monocytic cell line U-937. Compound 25 was the most active against T. cruzi with a EC50 of 75.52 μM compared with benznidazole with a EC50 of 58.79 μM. Compounds 3, 4, 7, and 15 were the derivatives with the best selectivity index (SI) with values of 7.5, 8.3,12.1, and 8.6, respectively. Finally, compound 7 was the safer and the more promising derivative against T. cruzi.

MACROCYCLIC AMIDES AS PROTEASE INHIBITORS

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Page/Page column 30; 31, (2013/07/25)

The invention relates to a compound of formula (I) wherein A, B, D and R1 to R6 are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.

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