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Biomedical subjects

J P Gleeson

Publications and source records attributed to J P Gleeson.

3 recordsLinked to original sources

Solid phase organic synthesis of piperazinone containing enkephalin mimetics: a readily derivatized, traceless scaffold.

The solid phase synthesis of a series of piperazinone-derived Leu-enkephalin analogues is presented. The initial step in the synthesis involved the N-alkylation of Wang resin bound N-(4-tert-butyloxy-phenethyl)-glycine with D or L Boc-serine-beta-lactone (the Vederas lactone). The resulting carboxylic acid was then coupled to a variety of monosubstituted benzylamine derivatives using benzotriazol-1-yloxy-tris(dimethyl-amino)phosphonium hexafluorophosphate (the BOP reagent) to yield a series of resin bound tertiary amides. Treatment with 5% H2O in TFA resulted in the facile cleavage, deprotection, and cyclization of this linear precursor to yield a series of piperazinones (compounds 1-8).

Drug Design↗

Upping the ante: relative caregivers' perceptions of changes in child welfare policies.

Thirty-five caregivers of related children who were in the custody of the child welfare system were interviewed individually or in focus groups as the state child welfare system implemented new federal and state policies encouraging these caregivers to adopt or assume guardianship of the children in their care. Interviews were transcribed and analyzed using qualitative methods. Issues of concern included emergency entrance into caregiving; the simultaneous satisfaction and burden of caregiving; obstacles to caregiving, adoption, or guardianship; complex changes in family dynamics following placement of children; sources of support; and caution regarding adoption or guardianship. The caregivers also offered recommendations for the child welfare system. Policy, practice, and research implications are discussed.

Adoption↗