Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) → tert-butyl 3-(3-methoxyphenyl)-5-oxo-4-(2-oxo-2-((R)-2'-oxo-1,1',2',3-tetrahydrospiro[inden-2,3'-pyrrolo[2,3-b]pyridin]-5-ylamino)ethyl)-8,11-dioxa-1,4-diazaspiro[5.6]dodecane-1-carboxylate

Participants

Reaction Steps

0.44 g (0.81 mmol) 80% 2-(1-(tert-butoxycarbonyl)-3-(3-methoxyphenyl)-5-oxo-8,11-dioxa-1,4-diazaspiro[5.6]dodecan-4-yl)ethanoic acid in 10 ml DMF were combined with 0.75 g (2.0 mmol) HATU and 0.34 ml (2.4 mmol) TEA and stirred for 10 min at RT. Then 0.25 g (0.98 mmol) (S)-5-amino-1,3-dihydrospiro[inden-2,3′-pyrrolo[2,3-b]pyridin]-2′(1′H)-one were added and the mixture was stirred overnight at RT. The reaction mixture was poured onto water. The precipitate formed was suction filtered, washed with water and dried.

Provenance & Evidence