(5R,9R)-1-(9H-fluoren-9-yl)-3,12-dioxo-9-(tetradecanoyloxy)-2,11-dioxa-7-thia-4-azapentacosane-5-carboxylic acid → (14R, 18R)-14-amino-13,21-dioxo-18-(tetradecanoyloxy)-3,6,9,20-tetraoxa-16-thia-12-azatetratriacontylphosphonic acid

Participants

Reaction Steps

The title product was prepared from (5R,9R)-1-(9H-fluoren-9-yl)-3,12-dioxo-9-(tetradecanoyloxy)-2,11-dioxa-7-thia-4-azapentacosane-5-carboxylic acid (1 eq) and diethyl 2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethylphosphonate (1.3 eq, from example 18, step 4) by following the procedure described for example 20, step 6-8. 1H NMR (CDCl3): δ 7.30 (br s, 1H), 5.13-5.23 (m, 2H), 4.30-4.43 (m, 2H), 4.07-4.20 (m, 2H), 3.44-3.87 (m, 11H), 2.92-3.13 (m, 3H), 2.68-2.92 (m, 4H), 2.22-2.38 (m, 4H), 1.69-2.17 (m, 8H), 1.52-1.67 (m, 4H), 1.10-1.36 (m, 32H), 0.88 (t, 6H). LRMS [M+H]=855.6.

Provenance & Evidence