(6S)-1'-tert-butyl-3-chlorospiro[5,7-dihydrocyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridine]-2'-one

Also known as: (2'R,3S)-1-(tert-butyl)-7'-chloro-4'H-spiro[pyrrolo[2,3-b]pyridine-3,3'-[1,2]oxathiino[5,6-b]pyridin]-2(1H)-one 2'-oxide, (S)-1'-(tert-butyl)-3-chloro-5,7-dihydrospiro[cyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one, Atogepant Impurity 31, Intermediate Impurity 35, Intermediate of Ubrogepant, Spiro[6H-cyclopenta[b]pyridine-6,3'-[3H]pyrrolo[2,3-b]pyridin]-2'(1'H)-one, 3-chloro-1'-(1,1-dimethylethyl)-5,7-dihydro-, (3'S)-

(6S)-1'-tert-butyl-3-chlorospiro[5,7-dihydrocyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridine]-2'-one (CAS 1455358-14-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H18ClN3O and a molecular weight of 327.8 g/mol. It is also known as (2'R,3S)-1-(tert-butyl)-7'-chloro-4'H-spiro[pyrrolo[2,3-b]pyridine-3,3'-[1,2]oxathiino[5,6-b]pyridin]-2(1H)-one 2'-oxide, (S)-1'-(tert-butyl)-3-chloro-5,7-dihydrospiro[cyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one and Atogepant Impurity 31. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1455358-14-1

Jingsj CID

J-1364012-7

Molecular Formula

C₁₈H₁₈ClN₃O

Molecular Weight

327.8 g/mol

Category

Organic Compounds

Last updated

8/21/2026