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157430-04-1

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157430-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157430-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,3 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157430-04:
(8*1)+(7*5)+(6*7)+(5*4)+(4*3)+(3*0)+(2*0)+(1*4)=121
121 % 10 = 1
So 157430-04-1 is a valid CAS Registry Number.

157430-04-1Upstream product

157430-04-1Relevant articles and documents

Potent Inhibitor of Drug-Resistant HIV-1 Strains Identified from the Medicinal Plant Justicia gendarussa

Zhang, Hong-Jie,Rumschlag-Booms, Emily,Guan, Yi-Fu,Wang, Dong-Ying,Liu, Kang-Lun,Li, Wan-Fei,Nguyen, Van H.,Cuong, Nguyen M.,Soejarto, Djaja D.,Fong, Harry H. S.,Rong, Lijun

, p. 1798 - 1807 (2017)

Justicia gendarussa, a medicinal plant collected in Vietnam, was identified as a potent anti-HIV-1 active lead from the evaluation of over 4500 plant extracts. Bioassay-guided separation of the extracts of the stems and roots of this plant led to the isolation of an anti-HIV arylnaphthalene lignan (ANL) glycoside, patentiflorin A (1). Evaluation of the compound against both the M-and T-Tropic HIV-1 isolates showed it to possess a significantly higher inhibition effect than the clinically used anti-HIV drug AZT. Patentiflorin A and two congeners were synthesized, de novo, as an efficient strategy for resupply as well as for further structural modification of the anti-HIV ANL glycosides in the search for drug leads. Subsequently, it was determined that the presence of a quinovopyranosyloxy group in the structure is likely essential to retain the high degree of anti-HIV activity of this type of compounds. Patentiflorin A was further investigated against the HIV-1 gene expression of the R/U5 and U5/gag transcripts, and the data showed that the compound acts as a potential inhibitor of HIV-1 reverse transcription. Importantly, the compound displayed potent inhibitory activity against drug-resistant HIV-1 isolates of both the nucleotide analogue (AZT) and non-nucleotide analogue (nevaripine). Thus, the ANL glycosides have the potential to be developed as novel anti-HIV drugs.

A Rapid Entry into Podophyllotoxin Congeners: Synthesis of Justicidin B

Kamal, Ahmed,Daneshtalab, Mohsen,Micetich, Ronald G.

, p. 3879 - 3882 (2007/10/02)

A facile synthesis of justicidin B is described, as well as related podophyllum lignans by employing Michael Initiated Ring Clousere Strategy followed by desulfurization mediated by nickel-containing complex reducing agent. - Key words: podophyllotoxin, podophyllum lignans, justicidin B., Michael initiated Ring Closure, desulfurization, nickel-containing complex reducing agent.

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