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Triphenylphosphine → 9-benzyloxy-2-cyclopropyl-6-(1-naphthalen-1-yl-cyclopentylmethyl)-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione

HRID 2169390
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HRID 2169390 반응식
[CH:1]1([N:4]([CH2:38][CH2:39]O)[C:5]([C:7]2[C:12]([O:13][CH2:14][C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)=[C:11]([OH:21])[N:10]=[C:9]([CH2:22][C:23]3([C:28]4[C:37]5[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=5)[CH:31]=[CH:30][CH:29]=4)[CH2:27][CH2:26][CH2:25][CH2:24]3)[N:8]=2)=[O:6])[CH2:3][CH2:2]1.N(C(OC(C)C)=O)=NC(OC(C)C)=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>ClCCl.C(OCC)(=O)C>[CH2:14]([O:13][C:12]1[C:11](=[O:21])[N:10]=[C:9]([CH2:22][C:23]2([C:28]3[C:37]4[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=4)[CH:31]=[CH:30][CH:29]=3)[CH2:27][CH2:26][CH2:25][CH2:24]2)[N:8]2[CH2:39][CH2:38][N:4]([CH:1]3[CH2:3][CH2:2]3)[C:5](=[O:6])[C:7]=12)[C:15]1[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 178519957N-cyclopropyl-N-(2-hydroxyethyl)-2-[(1-naphthalen-1-ylcyclopentyl)methyl]-4-oxo-5-phenylmethoxy-1H-pyrimidine-6-carboxamide

생성물 1

HCID 867260219-benzyloxy-2-cyclopropyl-6-(1-naphthalen-1-yl-cyclopentylmethyl)-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione수율 92.7%

시약·촉매·용매 2

HCID 6344
Dichloromethane
용매
HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 5-benzyloxy-6-hydroxy-2-(1-naphthalen-1-yl-cyclopentylmethyl)-pyrimidine-4-carboxylic acid cyclopropyl-(2-hydroxyethyl)-amide (355) (120 mg, 0.22 mmol) and diisopropyl azodicarboxylate (0.22 mL, 1.12 mmol) in dichloromethane (30 mL) was added triphenyl phosphine (351 mg, 1.34 mmol) at room temperature and the reaction mixture was stirred for 15 min at the same temperature. The yellow color disappeared (silica TLC 5% methanol in ethyl acetate, Rf=0.2). The dichloromethane was removed in vacuo and the crude mass was purified by silica gel (normal, 100-200 mesh) column chromatography using a gradient eluent mixture of 1% to 5% methanol in dichloromethane to get pure 9-benzyloxy-2-cyclopropyl-6-(1-naphthalen-1-yl-cyclopentylmethyl)-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione (356) (106 mg, 92%) as a white solid.

후처리

  1. customThe dichloromethane was removed in vacuo
  2. customthe crude mass was purified by silica gel (normal, 100-200 mesh) column chromatography
  3. additiona gradient eluent mixture of 1% to 5% methanol in dichloromethane

출처 및 근거

ORD 기록
ord-6fe51444eb834021a14c70493beacaaf
출처 데이터셋
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09045486B2

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