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Sodium triacetoxyborohydride → HCID 59065941, 화합물

HRID 25728
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HRID 25728 반응식
[NH2:1][C@@H:2]([C@H:10]([C@@H:12]1[C@@H:16]([O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])[C@@H:15]([O:25][Si:26]([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:28])[CH3:27])[C@H:14]([N:33]2[CH:38]=[CH:37][C:36](=[O:39])[N:35]([CH2:40][C:41]3[CH:46]=[CH:45][C:44]([O:47][CH3:48])=[CH:43][CH:42]=3)[C:34]2=[O:49])[O:13]1)[OH:11])[C:3]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])=[O:4].[CH:50]1[C:62]2[CH:61]([CH2:63][O:64][C:65](=[O:84])[NH:66][CH2:67][CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH2:73][CH2:74][CH2:75][CH2:76][C:77](=[O:83])[NH:78][CH2:79][CH2:80][CH:81]=O)[C:60]3[C:55](=[CH:56][CH:57]=[CH:58][CH:59]=3)[C:54]=2[CH:53]=[CH:52][CH:51]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(O)(=O)C.O1CCCC1>[Si:18]([O:17][C@H:16]1[C@@H:15]([O:25][Si:26]([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:27])[CH3:28])[C@H:14]([N:33]2[CH:38]=[CH:37][C:36](=[O:39])[N:35]([CH2:40][C:41]3[CH:46]=[CH:45][C:44]([O:47][CH3:48])=[CH:43][CH:42]=3)[C:34]2=[O:49])[O:13][CH:12]1[C@H:10]([OH:11])[C@@H:2]([C:3]([O:5][C:6]([CH3:7])([CH3:9])[CH3:8])=[O:4])[NH:1][CH2:81][CH2:80][CH2:79][NH:78][C:77](=[O:83])[CH2:76][CH2:75][CH2:74][CH2:73][CH2:72][CH2:71][CH2:70][CH2:69][CH2:68][CH2:67][NH:66][C:65](=[O:84])[O:64][CH2:63][CH:61]1[C:60]2[CH:59]=[CH:58][CH:57]=[CH:56][C:55]=2[C:54]2[C:62]1=[CH:50][CH:51]=[CH:52][CH:53]=2)([C:21]([CH3:22])([CH3:23])[CH3:24])([CH3:20])[CH3:19]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 5049666Sodium triacetoxyborohydrideHCID 12137063tert-butyl (2S,3R)-2-amino-3-[(2R,3R,4R,5R)-3,4-bis{[tert-butyl-(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)-tetrahydro-2-furanyl]-3-hydroxy-propanoateHCID 20759866HCID 20759866, 화합물

생성물 1

HCID 59065941HCID 59065941, 화합물수율 65%

시약·촉매·용매

2
HCID 176Acetic Acid촉매HCID 8028Tetrahydrofuran용매

실험 절차

By using an analogous procedure to that described for Example 1, a solution of tert-butyl (2S,3R)-2-amino-3-[(2R,3R,4R,5R)-3,4-bis{[tert-butyl-(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)-tetrahydro-2-furanyl]-3-hydroxypropanoate (125 mg, 0.173 mmol, obtained from Reference Example 6), 9H-fluoren-9-ylmethyl-11-oxo-11-[(3-oxopropyl)amino]undecyl-carbamate (99 mg, 0.208 mmol, obtained from Reference Example 30), acetic acid (2 drops) and sodium triacetoxyborohydride (73 mg, 0.346 mmol) in anhydrous tetrahydrofuran (4 ml) was stirred at room temperature under nitrogen for 5.5 hours. The product was purified by chromatography (flash column, silica gel, ethyl acetate) to provide tert-butyl (21S)-21-[(R)-[(3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(3-(4-methoxybenzyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)tetrahydro-2-furanyl](hydroxy)methyl]-1-(9H-fluoren-9-yl)-3,15-dioxo-2-oxa-4,16,20-triazadocosan-22-oate (133 mg, 65%) as a white solid.

후처리

  1. customThe product was purified by chromatography (flash column, silica gel, ethyl acetate)

출처 및 근거

ORD 기록
ord-9e5bdbf1ad6149049983dc23a40e3204
출처 데이터셋
uspto-grants-2005_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06858591B2

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