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Upadacitinib intermediate
 
Intermediate

No. Product name Product name CAS No.
1 Tert-butyl 5-tosyl-5h-pyrrolo[2,3-b]pyrazin-2-ylcarbamate 1201187-44-1
2 (3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester 1428243-26-8
3 (3R,4S)-4-ethyl-1,3-pyrrolidinedicarboxylic acid 1-(phenylmethyl) ester 1428243-24-6
4 N-[5-[(4-Methylphenyl)sulfonyl]-5H-pyrrolo[2,3-b]pyrazin-2-yl]carbamic acid ethyl ester 1869118-24-0

Intermediate

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