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267001-77-4

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267001-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 267001-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,7,0,0 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 267001-77:
(8*2)+(7*6)+(6*7)+(5*0)+(4*0)+(3*1)+(2*7)+(1*7)=124
124 % 10 = 4
So 267001-77-4 is a valid CAS Registry Number.

267001-77-4Downstream Products

267001-77-4Relevant articles and documents

Biomimetic Total Synthesis of Bisorbicillinol, Bisorbibutenolide, Trichodimerol, and Designed Analogues of the Bisorbicillinoids

Nicolaou,Vassilikogiannakis, Georgios,Simonsen, Klaus B.,Baran, Phil S.,Zhong, Yong-Li,Vidali, Veroniki P.,Pitsinos, Emmanuel N.,Couladouros, Elias A.

, p. 3071 - 3079 (2007/10/03)

The bisorbicillinoids are a growing class of novel natural products endowed with unique biological activity and are associated with fascinating hypotheses for their biosynthesis. A full account of our biomimetic explorations toward the bisorbicillinoids including the total syntheses of bisorbicillinol (1), bisorbibutenolide (2), and trichodimerol (4) from sorbicillin (3) is disclosed. Utilizing the novel dimerization reactions discovered and fine-tuned en route to 1 and 4, several analogues of these natural products have been synthesized. Furthermore, studies on the scope of these novel cycloaddition reactions and the isolation of a number of unexpected products along with proposed mechanisms for their formation are reported. These findings add to our knowledge of the largely unexplored chemistry of o-quinols and related aromatic systems.

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