C(OC([NH:8][CH2:9][CH:10]=[CH:11][C:12]1[CH:13]=[CH:14][C:15]2[O:19][C:18](=[O:20])[NH:17][C:16]=2[CH:21]=1)=O)(C)(C)C>FC(F)(F)C(O)=O>[NH2:8][CH2:9][CH:10]=[CH:11][C:12]1[CH:13]=[CH:14][C:15]2[O:19][C:18](=[O:20])[NH:17][C:16]=2[CH:21]=1A solution of 5-(3-(t-butoxycarbonylamino)-1-propenyl)-2-benzoxazolone in trifluoroacetic acid is stirred at ambient temperature for 30 min, then evaporated to dryness to yield 5-(3-amino-1-propenyl)-2-benzoxazolone.
読み込み中…