(2S,4R)-4-hydroxy-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidine-2-carboxylic acid → (2S,4R)-1-(tert-butoxycarbonyl)-4-(phenanthridin-6-yloxy)pyrrolidine-2-carboxylic acid

HRID 238079

반응식

HRID 238079 반응식
[C:1]([N:8]1[CH2:15][C@H:14]([OH:16])[CH2:13][C@H:9]1[C:10]([OH:12])=[O:11])([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].Cl[C:18]1[N:19]=[C:20]2[C:25](=[C:26]3[C:31]=1[CH:30]=[CH:29][CH:28]=[CH:27]3)[CH:24]=[CH:23][CH:22]=[CH:21]2.CC(C)([O-])C.[Na+]>CN1C(=O)CCC1>[C:4]([O:3][C:1]([N:8]1[CH2:15][C@H:14]([O:16][C:18]2[N:19]=[C:20]3[C:25](=[C:26]4[C:31]=2[CH:30]=[CH:29][CH:28]=[CH:27]4)[CH:24]=[CH:23][CH:22]=[CH:21]3)[CH2:13][C@H:9]1[C:10]([OH:12])=[O:11])=[O:2])([CH3:7])([CH3:6])[CH3:5]

참가 물질

5

실험 절차

(2S,4R)—N-Boc-4-hydroxyproline can be reacted with 6-chlorophenanthridine in NMP, in the presence of sodium t-butoxide, to produce (2S,4R)-1-(tert-butoxycarbonyl)-4-(phenanthridin-6-yloxy)pyrrolidine-2-carboxylic acid. Methyl tertiary butyl ether (MTBE) and water can then be added. The aqueous layer is separated, washed, and then HCl is added, followed by extraction with MTBE. The extracted product can be mixed with diisopropylethylamine (DIPEA) and HATU (CAS #148893-10-1), and then reacted with (1R,2S)-ethyl-1-amino-2-vinylcyclopropanecarboxylate tosylate salt in dimethylformide (DMF) and toluene. The reaction produces (2S,4R)-tert-butyl 2-((1R,2S)-1-(ethoxycarbonyl)-2-vinylcyclopropylcarbamoyl)-4-(phenanthridin-6-yloxy)pyrrolidine-1-carboxylate, which can be extracted with MTBE and washed with HCl, further extracted, washed, dried, and dissolved in 2-propanol.

출처 및 근거

ORD 기록
ord-9a91b4f050094c7cbca554871c806948
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08642538B2

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