<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-22T09:50:03Z</responseDate><request verb="GetRecord" identifier="oai:repository.rice.edu:1911/19235" metadataPrefix="dim">https://repository.rice.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:repository.rice.edu:1911/19235</identifier><datestamp>2024-01-11T20:56:38Z</datestamp><setSpec>com_1911_8299</setSpec><setSpec>col_1911_13110</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor">Ciufolini, Marco A.</dim:field>
   <dim:field mdschema="dc" element="creator">Xi, Ning</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2009-06-04T08:32:43Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2009-06-04T08:32:43Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued">1997</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="citation">Xi, Ning. &amp;quot;Synthetic studies of luzopeptins.&amp;quot; (1997) Diss.,  Rice University.  &amp;lt;a href=&amp;quot;https://hdl.handle.net/1911/19235&amp;quot;&amp;gt;https://hdl.handle.net/1911/19235&amp;lt;/a&amp;gt;.</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">https://hdl.handle.net/1911/19235</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="callno">THESIS CHEM. 1997 XI</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract">Luzopeptins are a series of cyclic depsipeptides which possesses potent antitumor and antiviral activities. There is no total synthesis of Luzopeptins has been achieved. In our own effort to synthesize the luzopeptins, we developed a concise and practical route to PCA, 86, and an efficient protocol to synthesize the mono-BOC, 181. A novel serinyl chloride was devised in conjunction with the formation of PCA-serine dipeptide derivatives, 164. All these methodologies were successfully applied to the synthesis of monomeric derivative of luzopeptin E$\sb2,$ 288.*
ftn*Please refer to the dissertation for diagram.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">201 p.</dim:field>
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   <dim:field mdschema="dc" element="language" qualifier="iso">eng</dim:field>
   <dim:field mdschema="dc" element="rights">Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.</dim:field>
   <dim:field mdschema="dc" element="subject">Organic chemistry</dim:field>
   <dim:field mdschema="dc" element="title">Synthetic studies of luzopeptins</dim:field>
   <dim:field mdschema="dc" element="type">Thesis</dim:field>
   <dim:field mdschema="dc" element="type" qualifier="material">Text</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="department">Chemistry</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="discipline">Natural Sciences</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="grantor">Rice University</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="level">Doctoral</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="name">Doctor of Philosophy</dim:field>
   <dim:field mdschema="others" element="access-status">open.access</dim:field>
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