3-(4(S)-methyl-3-oxo-7-trifluoromethyl-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triazaphenanthren-6-ylamino)azetidine-1-carboxylic acid tert-butyl ester 、
三氟乙酸 以
二氯甲烷 为溶剂,
反应 1.0h,
以to give 6-(azetidin-3-ylamino)-4(S)-methyl-7-trifluoromethyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid as a pale yellow solid (Example #53-1, Enantiomer 1, SFC (Table 1, Method 7), Rt=6.44 min, 0.275 g, 99%)的产率得到6-(azetidin-3-ylamino)-4(S)-methyl-7-trifluoromethyl-2,10-dihydro-9-oxa-1,2,4a-triazaphenanthren-3-one trifluoroacetic acid