67977-91-7 Usage
General Description
The chemical compound "(2R,6R,7R)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic acid diphenylmethyl ester" is a complex organic molecule with a unique structure. It contains a bicyclic ring system and a carboxylic acid group, as well as a benzoylamine and diphenylmethyl ester functional groups. (2R,6R,7R)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic acid diphenylmethyl ester is likely to have biological activity due to its structural resemblance to natural products and drugs. The presence of the benzoylamine group suggests potential interactions with biological targets such as enzymes or receptors, and the carboxylic acid group may impart solubility and bioavailability properties. Overall, this chemical compound has the potential for further study and development in the fields of medicinal chemistry and drug discovery.
Check Digit Verification of cas no
The CAS Registry Mumber 67977-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,7 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67977-91:
(7*6)+(6*7)+(5*9)+(4*7)+(3*7)+(2*9)+(1*1)=197
197 % 10 = 7
So 67977-91-7 is a valid CAS Registry Number.
67977-91-7Relevant articles and documents
New route to 3-(substituted) methyl 1-oxa- and (1-thia)cephems from 3-exomethylene intermediates via sulfenyl chloride adducts
Aoki,Konoike,Itani,et al.
, p. 2515 - 2526 (2007/10/02)
Addition of methane- and benzenesulfenyl chlorides to 3-exomethylene-1-oxacephams 10 and 14 gave 3β-sulfenyl-3α-chloromethyl adducts 11 and 15. Nucleophilic substitution of the adducts proceeded facilely to afford compounds 18-23, which were converted into Δ3-dervatives 26 and 27 by oxidative elimination. This new route, as illustrated by the sequence 6 → 7 → 8 → 3, has an essential advantage in using the saturated intermediated 7 and 8 with a stabler β-lactam ring which is compatible in nucleophilic substitution, alkaline ester hydrolysis and further manipulations. These synthetic features are well demonstrated by successful synthesis of 1-oxacefamandol 35 and 7β-(2-thienylacetyl-amino)-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-3-ceph em-4-carboxylic acid (45).