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613223-81-7

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613223-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 613223-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,3,2,2 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 613223-81:
(8*6)+(7*1)+(6*3)+(5*2)+(4*2)+(3*3)+(2*8)+(1*1)=117
117 % 10 = 7
So 613223-81-7 is a valid CAS Registry Number.

613223-81-7Downstream Products

613223-81-7Relevant articles and documents

The synthetic and biological studies of discorhabdins and related compounds

Wada, Yasufumi,Harayama, Yu,Kamimura, Daigo,Yoshida, Masako,Shibata, Tomoyuki,Fujiwara, Kousaku,Morimoto, Koji,Fujioka, Hiromichi,Kita, Yasuyuki

scheme or table, p. 4959 - 4976 (2011/08/06)

Various analogues of the marine alkaloids, discorhabdins, have been synthesized. The strategy contains spirocyclization with phenyliodine(iii) bis(trifluoroacetate) (PIFA), oxidative fragmentation of the β-amino alcohols with the hypervalent iodine reagent C6F 5I(OCOCF3)2, the detosylation and dehydrogenation reaction of the pyrroloiminoquinone unit in the presence of a catalytic amount of NaN3 and the bridged ether synthesis with HBr-AcOH as the key reactions. All the synthesized compounds were evaluated by in vitro MTT assay for cytotoxic activity against the human colon cancer cell line HCT-116. Furthermore, the discorhabdin A oxa analogues were also evaluated against four kinds of tumor model cells, a human colon cancer cell line (WiDr), a human prostate cancer cell line (DU-145) and murine leukemia cell lines (P388 and L1210). For the identification of the target, discorhabdin A and the discorhabdin A oxa analogue were evaluated by an HCC panel assay. In the test, discorhabdins could have a novel mode of action with the tumor cells. The Royal Society of Chemistry 2011.

The first total synthesis of discorhabdin A

Tohma, Hirofumi,Harayama, Yu,Hashizume, Miki,Iwata, Minako,Kiyono, Yorito,Egi, Masahiro,Kita, Yasuyuki

, p. 11235 - 11240 (2007/10/03)

The first stereoselective total synthesis of a potent antitumor alkaloid, discorhabdin A (1), which is a unique sulfur-containing pyrroloiminoquinone alkaloid, is described. The key step in the stereocontrolled total synthesis of 1 involves both a diaster

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