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949892-17-5

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949892-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 949892-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,9,8,9 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 949892-17:
(8*9)+(7*4)+(6*9)+(5*8)+(4*9)+(3*2)+(2*1)+(1*7)=245
245 % 10 = 5
So 949892-17-5 is a valid CAS Registry Number.

949892-17-5Relevant articles and documents

Combined directed metalation-cross coupling strategies. Total synthesis of the aglycones of gilvocarcin V, M and E

James, Clint A.,Snieckus, Victor

, p. 8149 - 8152 (1997)

Using the versatile Directed ortho and remote Metalation protocols linked with Suzuki-Miyaura cross coupling, efficient syntheses of defucogilvocarcin V, M, and E, 2-4 have been achieved.

A Novel Compound For Regulating Circadian Rhythm And A Use Thereof

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Paragraph 0033-0034; 0037-0038, (2017/10/20)

The present invention relates to a novel compound which shows activities dependent on a crucial gene Rev-erbandalpha; constituting biological clock, and enables the production of pharmaceutical compositions for regulating biorhythms containing the novel c

Combined directed remote metalation-transition metal catalyzed cross coupling strategies: The total synthesis of the aglycones of the gilvocarcins V, M, and E and arnottin I

James, Clint A.,Snieckus, Victor

experimental part, p. 4080 - 4093 (2009/09/30)

(Chemical Equation Presented) A key directed remote metalation (DreM)-carbamoyl migration strategy was applied in an efficient synthesis of the naturally occurring 6H-naphtho[1,2-b]benzopyran-6-one defucogilvocarcin V (1a, Scheme 11). The required biarylcarbamate 33d was best prepared by a high yielding Suzuki coupling reaction of 31a with the differentially protected trioxygenated naphthalene coupling partner 32d which was synthesized using a selective acylation of a juglone derivative. In the late stages of the synthesis, the triflate 39 served as the common intermediate to install the required C-8 vinyl group of 1a (Stille coupling) as well as the required substituents for the preparation of defucogilvocarcins M (1b) and E (1c). A variety of protecting group strategies were investigated and provided insight into which groups are preferred for the DreM-carbamoyl migration process. The strategic lessons learned from this total synthesis were applied in the successful total synthesis of the structurally similar natural product arnottin I (2).

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