HCID 131723652, compound → HCID 131723651, compound

Participants

Reaction Steps

Morpholino-Ser(OAloc) was prepared from SER(OtBu)-OtBu. Reaction of Ser(OtBu)-OtBu with 4-morpholineacarbonyl chloride in pyridine yielded morpholino-Ser(OtBu)-OtBu. Morpholino-Ser(OtBu)-OtBu was hydrolyzed with TFA to yield morpholino-Ser. Esterification of morpholino-Ser with isobutylene in the presence of a catalytic amount of H2SO4 afforded morpholino-Ser-OtBu. Reaction of morpholino-Ser-OtBu with allyl 1-benzotriazolyl carbonate yielded morpholino-Ser(OAloc)-OtBu. Morpholino-Ser(OAloc)-OtBu was hydrolyzed with TFA in CHCl3 (1:1) to yield morpholino-Ser(OAloc).

Provenance & Evidence