Cyanogen Bromide → Quinazolin-2-amine

HRID 481136

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HRID 481136 반응식
[CH:1]1[C:6]2[N:7]=[C:8]3[N:13]([CH2:14][C:5]=2[C:4](Cl)=[C:3](Cl)[CH:2]=1)CC(=O)[NH:9]3.O.Cl.C(N(CC1C(N)=CC=C(Cl)C=1Cl)CC(O)=O)C.N#CBr>>[NH:9]=[C:8]1[N:13]=[CH:14][C:5]2[C:6](=[CH:1][CH:2]=[CH:3][CH:4]=2)[NH:7]1

참가 물질

5

실험 절차

Commercially, as discussed in U.S. Pat. No. 5,801,245 and as shown in FIG. 1, Anagrelide has been prepared as the hydrochloride monohydrate (compound IV) from the intermediate, ethyl N-(6-amino-2,3-dichlorobenzyl)glycine (compound I) by reaction with cyanogen bromide in hot alcohol solution, or, preferentially, by reaction with cyanogen bromide in an aprotic solvent to give the iminoquinazoline intermediate (compound II) which is isolated and then reacted with a base in a hot solution of alcohol to form Anagrelide base (compound III).

출처 및 근거

ORD 기록
ord-cfab49f40e6e4e44a0f2973c0270664c
출처 데이터셋
uspto-grants-2003_11
특허 번호
US06653500B2

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