Y. Watanabe et al., PROTECTION OF PHOSPHATE WITH THE 9-FLUORENYLMETHYL GROUP - SYNTHESIS OF UNSATURATED-ACYL PHOSPHATIDYLINOSITOL 4,5-BISPHOSPHATE, Tetrahedron letters, 38(42), 1997, pp. 7407-7410
Alkyl di-(9-fluorenylmethyr) phosphates obtained via phosphitylation w
ere found to be suitable for protection of phosphoric monoesters, whic
h were generated by treatment of the triesters with DBU or triethylami
ne. This strategy and a hydroxyl protecting group, 2-[2-(levulinoyloxy
)ethyl]benzoyl were applied to synthesis of a dioleoyl analog of PI(4,
5)P-2. (C) 1997 Elsevier Science Ltd.