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3-Oxo-azetidine-1-carboxylic acid tert-butyl ester → 3-(7-Cyclopropyl-4-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester

HRID 518985
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HRID 518985 반응식
[NH2:1][C:2]1[CH:3]=[C:4]2[C:13](=[CH:14][C:15]=1[CH:16]1[CH2:18][CH2:17]1)[O:12][CH2:11][C:10]1[N:5]2[CH:6]([CH3:20])[C:7](=[O:19])[NH:8][N:9]=1.O=[C:22]1[CH2:25][N:24]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:23]1.C([BH3-])#N.[Na+]>CCO.CC(O)=O>[C:29]([O:28][C:26]([N:24]1[CH2:25][CH:22]([NH:1][C:2]2[CH:3]=[C:4]3[C:13](=[CH:14][C:15]=2[CH:16]2[CH2:17][CH2:18]2)[O:12][CH2:11][C:10]2[N:5]3[CH:6]([CH3:20])[C:7](=[O:19])[NH:8][N:9]=2)[CH2:23]1)=[O:27])([CH3:32])([CH3:30])[CH3:31]
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참가 물질

6

반응물 3

HCID 15194043-Oxo-azetidine-1-carboxylic acid tert-butyl esterHCID 5003444Sodium cyanoborohydrideHCID 867273366-Amino-7-cyclopropyl-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one

생성물 1

HCID 867273373-(7-Cyclopropyl-4-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester수율 41.5%

시약·촉매·용매 2

HCID 176
Acetic Acid
용매
HCID 702Ethanol용매

실험 절차

A solution of 6-amino-7-cyclopropyl-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one (0.860 g, 3.16 mmol) and tert-butyl 3-oxoazetidine-1-carboxylate (2.703 g, 15.79 mmol) in EtOH (25 mL) and HOAc (2.5 mL) was heated to reflux overnight. The reaction mixture was cooled to ambient temperature and sodium cyanoborohydride (0.073 g, 1.159 mmol) was added. The reaction mixture was stirred overnight and concentrated in vacuo. The residue was purified by preparative HPLC (Table 3, Method 3) to give 3-(7-cyclopropyl-4-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester (0.560 g, 41%). The racemic product was separated by chiral SFC (Table 2, Method 6) to give 3-(7-cyclopropyl-4(R)-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester (Enantiomer 1, SFC (Table 1, Method 12) Rt=6.01 min., 0.300 g, 22%) and 3-[7-(2,4-dichloro-phenyl)-4(S)-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino]-azetidine-1-carboxylic acid tert-butyl ester (Enantiomer 2, SFC (Table 1, Method 12) Rt=8.89 min., 0.280 g, 20%).

후처리

  1. temperatureto reflux overnight
  2. concentrationconcentrated in vacuo
  3. customThe residue was purified by preparative HPLC (Table 3, Method 3)

출처 및 근거

ORD 기록
ord-1377736a7cbb456b8a472f2ae18bddb2
출처 데이터셋
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09115151B2

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