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115058-61-2

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115058-61-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115058-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,0,5 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 115058-61:
(8*1)+(7*1)+(6*5)+(5*0)+(4*5)+(3*8)+(2*6)+(1*1)=102
102 % 10 = 2
So 115058-61-2 is a valid CAS Registry Number.

115058-61-2Downstream Products

115058-61-2Relevant articles and documents

CONJUGATES OF STEROIDS AND ANTI-CANCER AGENTS. III. THE SYNTHESIS OF ESTRYNAMINE AND CERTAIN DERIVATIVES

Blickenstaff, Robert T.,Forster, Emerson,Gerzon, Koert,Young, Peter

, p. 223 - 232 (2007/10/02)

Propargyl amine was protected by condensing it with 2,5-hexanedione to give 2,5-dimethyl-N-(2'-propyn-1'-yl)pyrrole (2).The latter was converted to the corresponding Grignard reagent with ethylmagnesium bromide, and then condensed with estrone tetrahydropyranyl ether to give 17α--1,3,5(10)-estratriene-3,17β-diol 3-tetrahydropyranyl ether (3), in 85percent yield.Acetic acid and methanol cleaved the tetrahydropyranyl ether group, and hydroxylamine and sodium bicarbonate cleaved the pyrrole ring to give 17α-(3'-amino-1'-propyn-1'-yl)-1,3,5(10)-estratriene-3,17β-diol (1), estrynamine.Several derivatives and analogs of 1 were also synthesized.Estrynamine binds to estrogen receptor with an RBA of 0.0045 (estradiol = 1.0).Several of the compounds, including estrynamine, are weak estrogens (stimulation of prolactin synthesis).

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