Crisaborole; AN2728 906673-24-3 Inter:
1)
2-Bromo-5-hydroxy-benzaldehyde，CAS：2973-80-0，Appearance: white solid，HPLC,1H NMR 98%+;
2)
4-(4-Bromo-3-formyl-phenoxy)-benzonitrile,CAS: 906673-54-9,Appearance: white solid，HPLC,1H NMR 98%+;
3)
4-(4-Bromo-3-hydroxymethyl-phenoxy)-benzonitrile,CAS：906673-45-8，Appearance: white solid，HPLC,1H NMR 98%+;
4)
4-(4-bromo-3-(1,3-dioxolan-2-yl)phenoxy)benzonitrile,CAS#：1217366-74-9，外观：白色至类白色固体,HPLC,1H NMR 98%+;
1-萘酮-6-位衍生物
5)
6-Amino-3,4-dihydro-1(2H)-naphthalenone ;6-氨基-1,2,3,4-四氢-1-萘酮,CAS：3470-53-9;外观：浅黄棕色固体，HPLC,1H NMR 98%+
6)
6-Chloro-1-tetralone，6-氯-3,4-二氢-2H-1-萘酮,CAS： 26673-31-4;外观:浅黄色油状物，HPLC,1H NMR 97%+
7)
6-碘-3,4-二氢-2H-1-萘酮,CAS： 26673-31-4;外观:白色至类白色固体，HPLC,1H NMR 97%+
1)
2-Bromo-5-hydroxy-benzaldehyde，CAS：2973-80-0，Appearance: white solid，HPLC,1H NMR 98%+;2)
4-(4-Bromo-3-formyl-phenoxy)-benzonitrile,CAS: 906673-54-9,Appearance: white solid，HPLC,1H NMR 98%+;3)
4-(4-Bromo-3-hydroxymethyl-phenoxy)-benzonitrile,CAS：906673-45-8，Appearance: white solid，HPLC,1H NMR 98%+;4)
4-(4-bromo-3-(1,3-dioxolan-2-yl)phenoxy)benzonitrile,CAS#：1217366-74-9，外观：白色至类白色固体,HPLC,1H NMR 98%+;1-萘酮-6-位衍生物
5)
6-Amino-3,4-dihydro-1(2H)-naphthalenone ;6-氨基-1,2,3,4-四氢-1-萘酮,CAS：3470-53-9;外观：浅黄棕色固体，HPLC,1H NMR 98%+ 6)
6-Chloro-1-tetralone，6-氯-3,4-二氢-2H-1-萘酮,CAS： 26673-31-4;外观:浅黄色油状物，HPLC,1H NMR 97%+7)
6-碘-3,4-二氢-2H-1-萘酮,CAS： 26673-31-4;外观:白色至类白色固体，HPLC,1H NMR 97%+
Carfilzomib，PR171中间体：
8）
(S)-4-(tert-Butoxycarbonylamino)-2,6-dimethyl-1-hepten-3-one，
CAS: 247068-81-1，Appearance: white solid，HPLC,1H NMR 99%+;
9）
CAS:247068-82-2,tert-butyl ((S)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-yl)carbamate,Appearance: white solid，HPLC,1H NMR 98%+;
CAS:247068-82-2,tert-butyl ((S)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-yl)carbamate,Appearance: white solid，HPLC,1H NMR 98%+;
10）
CAS:247068-85-5 ，Appearance: white solid，HPLC,1H NMR 98%+;
CAS:247068-85-5 ，Appearance: white solid，HPLC,1H NMR 98%+;