Butyl triphenyl phosphonium fl

Two‐Step, One‐Pot Synthesis of Inosine, Guanosine, and 2′‐Deoxyguanosine O6‐Ethers via Intermediate O6‐(Benzotriazol‐1‐yl) Derivatives

for the etherification at the O 6 ?position of silyl?protected inosine, guanosine, and 2??deoxyguanosine is described. Typically, a THF solution of the silylated nucleoside is treated with 1H ?benzotriazol?1?yloxy?tris(dimethylamino)phosphonium hexafluorophosphate (BOP

Synthesis of Peptidomimetic Conjugates of Cyclic Nucleoside Phosphonates

to 200 mesh, 1% cross‐linked, typical loading 1.0 to 1.8 mmol/g; Aldrich) Methyl O‐[tert‐butyl(dimethyl)silyl]‐(L )‐serinate ( S.6 a , see protocol

Synthesis of Peptide‐Oligonucleotide Conjugates by Diels‐Alder Cycloaddition in Water

) N α ‐(9‐Fluorenylmethoxycarbonyl)‐protected amino acids (Fmoc‐aa‐OH; Novabiochem, Bachem): e.g., for sequences illustrated here, Arg(Pbf), Gly, Leu, Phe, Ser(t Bu), and Tyr(t Bu) (t Bu: tert ‐butyl; Pbf