tert-butyl 2 4-dioxopiperidine-1-carboxylate (CAS# 845267-78-9)
Ewu ati Aabo
Awọn koodu ewu | 20/21/22 - Ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe mì. |
Apejuwe Abo | S23 – Maṣe simi oru. S24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju. |
WGK Germany | 3 |
HS koodu | 29337900 |
Alaye
Lo | 2, 4-dipiperidon-1-formate tert-butyl formate jẹ iṣelọpọ ti awọn itọsẹ phenoxymethyl-dihydrothiazolopyridone Reactants ninu ọja naa, gẹgẹbi oluyipada igbekalẹ rere yiyan (PAM) ti iṣelọpọ metabolized glutamate 5 (mGlu5). |
ohun elo | 2, 4-dioperidone-1-tert-butyl formate jẹ lilo akọkọ bi agbedemeji Organic ati agbedemeji elegbogi, ati pe o le ṣee lo ninu iwadii yàrá ati ilana idagbasoke ati ilana iṣelọpọ oogun kemikali. |
igbaradi | igbese a: fi EDCI (191.7g) si DMF (400mL) ojutu ti 3- (tert-butoxycarbonylamino) propionic acid (189.2g,1.0mol), meldamic acid (144.1g,1.0mol) ati DMAP (135.0g,1.1mol) ) tutu nipasẹ yinyin iwẹ, 1.0mol). Abajade reactants won rú moju ni yara otutu. Idahun naa ti pa pẹlu 200mL H2O. Abajade adalu ti a fi kun dropwise to H2O (2.0L) labẹ darí saropo. Ohun elo ti o gba ni a ti wẹ ati ki o fọ daradara pẹlu omi si pH 7 lati gba ọja naa (283g, 90% ikore). Igbesẹ B: Ojutu ti 3- (2, 2-dimethyl-4, 6-dioxo-1, 3-dioxan-5-yl) -3-oxopropylcarbamate tert-butyl ester (100g,317.46mmol) ni toluene (1500mL) ti wa ni kikan ni 100 ° C fun wakati 4. Awọn reactants ti wa ni tutu si iwọn otutu yara ati idojukọ labẹ titẹ idinku lati gba ọja robi kan. Ọja naa (56g,83% ikore) jẹ mimọ nipasẹ lilọ-MTBE. |
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