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146986-42-7

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146986-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146986-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,8 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 146986-42:
(8*1)+(7*4)+(6*6)+(5*9)+(4*8)+(3*6)+(2*4)+(1*2)=177
177 % 10 = 7
So 146986-42-7 is a valid CAS Registry Number.

146986-42-7Relevant articles and documents

Regioselective nucleophilic ring-opening reaction of chiral epoxyallyl alcohols: A ready access to the pyran core of macrolactin 3

Radha Krishna, Palakodety,Nomula, Rajesh,Rama Krishna, Kallaganti V.S.

, p. 3381 - 3383 (2014/06/09)

Herein we report the synthetic strategy towards the pyran core of macrolactin 3 via Sharpless epoxidation, titanium(IV) mediated regioselective ring-opening reaction of epoxyallyl alcohol/epoxy alcohol and oxa-Michael addition as the key steps.

Synthesis of Entecavir (BMS-200475)

Zhou, Bing,Li, Yuanchao

, p. 502 - 504 (2012/02/02)

A synthesis of Entecavir (BMS-200475) was achieved starting from 1,3-propanediol in 15 steps and 23.4% overall yield. A unique feature of the synthetic route is that the five-membered carbocyclic core is installed by an intramolecular nitrile oxide cycloaddition (INOC) reaction and the guanine moiety is introduced by a Mitsunobu reaction. The route is characteristic of low cost, high yield and easy operation.

InCl3-mediated intramolecular Friedel-Crafts-type cyclization and its application to construct the [6-7-5-6] tetracyclic scaffold of liphagal

Jiang, Hao,Tian, Lufeng,Li, Zhentao,Liu, Qi,Li, Chuangchuang,Yao, Xinsheng,Yang, Zhen

experimental part, p. 36 - 42 (2012/03/22)

A unified strategy toward the construction of the [5.7.6]tricyclic skeleton of liphagal is reported, featuring InCl3-mediated intramolecular Friedel-Crafts-type cyclization.

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