4.7
[1]. Dragana Milic, et al. Estrone derived steroidal diepoxide: biologically active compound and precursor of a stable steroidal A,B-spiro system. Steroids. 9 Nov;74(1):89-5.
[]. Feng Liu, et al. Intramolecular formal [4 + ] cycloaddition of nitriles with amides triggered by TMSOTf/EtN: highly efficient construction of pyrrolo[1,-a]pyrimidin-4(6H)-ones. J Org Chem. 9 Aug 7;74(15):5699-7.
[]. Hannah W Mbatia, et al. Understanding the relationship between photolysis efficiency and metal binding using ArgenCast photocages. Photochem Photobiol. 1 Jul-Aug;88(4):844-5.
[4]. Izabella Jastrzebska, et al. On reactions of steroidal -oxo and ,4-epoxysapogenins with Lewis acids. Steroids. 9 Aug;74(8):675-8.
[5]. Kevin W C Poon, et al. Trimethylsilyl trifluoromethanesulfonate (TMSOTf) assisted facile deprotection of N,O-acetonides. J Org Chem. 8 Jan 18;7():75-5.
H6-H14
P1-P-P4-P41-P4-P4-P6-P64-P8-P1+P+P1-P4+P4-P6-P7+P78-P45-P51
GHS,GHS5
8 ()
9