| 摘要 |
Provided is a compound of the following formula (I) for preparing 4-(10B)borono-L-phenylalnine: wherein R group represents a protecting group and is selected from the group consisting of: tert-butoxycarbonyl (Boc) group, trityl (Trt) group, 3,5-dimethoxyphenylisopropoxycarbonyl(Ddz) group, 2-(4-Biphenyl)isopropoxycarbonyl (Bpoc) group, and 2-nitrophenylsulfenyl (Nps) group, and the compound has a 10B purity higher than or equal to 98% and an enantiomeric excess higher than or equal to 99%. |
