19.85
[1]. McMinn DL, et, al. Synthesis of oligonucleotides containing 3'-alkyl amines using N-isobutyryl protected deoxyadenosine phosphoramidite. Tetrahedron Letters. 1997 May; 38(18): 313-316.
H30-H315-H319-H335
P61-P64-P70-P71-P80-P30+P35-P304+P340-P305+P351+P338-P330-P36+P364-P403+P33-P405-P501