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67890-29-3

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67890-29-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67890-29-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,9 and 0 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 67890-29:
(7*6)+(6*7)+(5*8)+(4*9)+(3*0)+(2*2)+(1*9)=173
173 % 10 = 3
So 67890-29-3 is a valid CAS Registry Number.

67890-29-3Relevant articles and documents

New class of alkynyl glycoside analogues as tyrosinase inhibitors

Saehlim, Natthiya,Athipornchai, Anan,Sirion, Uthaiwan,Saeeng, Rungnapha

supporting information, (2020/06/01)

A new series of alkynyl glycoside analogues were designed and synthesized from cheap and a commercially available sugar by introduction of various alkynyl and alkyl groups at C-1 and C-6 positions of the sugar ring. The inhibitory abilities of alkynyl gly

Direct dehydrative glycosylation catalyzed by diphenylammonium triflate

Hsu, Mei-Yuan,Lam, Sarah,Lin, Mei-Huei,Lin, Su-Ching,Wang, Cheng-Chung,Wu, Chia-Hui

supporting information, (2020/03/13)

Methods for direct dehydrative glycosylations of carbohydrate hemiacetals catalyzed by diphenylammonium triflate under microwave irradiation are described. Both armed and disarmed glycosyl-C1-hemiacetal donors were efficiently glycosylated in moderate to excellent yields without the need for any drying agents and stoichiometric additives. This method has been successfully applied to a solid-phase glycosylation.

β-Selective Glycosylation by Using O-Aryl-Protected Glycosyl Donors

Otsuka, Yuji,Yamamoto, Toshihiro,Fukase, Koichi

supporting information, p. 2719 - 2723 (2019/07/15)

New glycosyl donors have been developed that contained several para-substituted O-aryl protecting groups and their stereoselectivity for the glycosylation reaction was evaluated. A highly β-selective glycosylation reaction was achieved by using thioglycosides that were protected by 4-nitrophenyl (NP) groups, which were introduced by using the corresponding diaryliodonium triflate. Analysis of the stereoselectivities of several glycosyl donors indicated that the β-glycosides were obtained through an SN2-type displacement from the corresponding α-glycosyl triflate. The NP group could be removed by reduction of the nitro group and acylation, followed by oxidation with ceric ammonium nitrate (CAN).

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