(S)-5-(1-(benzo[d]thiazol-2-yl)pyrrolidin-3-yl)-7,7-dimethyl-5H-pyrrolo[2,3-b]pyrazin-6(7H)-one 、 (R)-tert-butyl 3-(7,7-dimethyl-6-oxo-6,7-dihydro-5H-pyrrolo[2,3-b]pyrazin-5-yl)pyrrolidine-1-carboxylate 、
盐酸 、
1,4-二氧六环 在
(R)-5-(1-(benzo[d]thiazol-2-yl)pyrrolidin-3-yl)-7,7-dimethyl-5H-pyrrolo[2,3-b]pyrazin-6(7H)-one 作用下,
以diisopropylethylamine (1 mL, 5.75 mmol), and 2-chlorobenzothiazole (0.153 mL, 0.903 mmol) to afford (R)-5-(1-(benzo[d]thiazol-2-yl)pyrrolidin-3-yl)-7,7-dimethyl-5H-pyrrolo[2,3-b]pyrazin-6(7H)-one (0.201 g, 0.550 mmol, 60.9% yield)的产率得到N,N-二异丙基乙胺