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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 zASbWfL/XYNV6LCYen9J3A==

<SEC-DOCUMENT>0001455364-09-000002.txt : 20090723
<SEC-HEADER>0001455364-09-000002.hdr.sgml : 20090723
<ACCEPTANCE-DATETIME>20090723112946
ACCESSION NUMBER:		0001455364-09-000002
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20090723
DATE AS OF CHANGE:		20090723
EFFECTIVENESS DATE:		20090723

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNDEVRX INC
		CENTRAL INDEX KEY:			0001455364
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-126539
		FILM NUMBER:		09958582

	BUSINESS ADDRESS:	
		STREET 1:		ONE BROADWAY
		STREET 2:		14TH FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-401-3110

	MAIL ADDRESS:	
		STREET 1:		ONE BROADWAY
		STREET 2:		14TH FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0502</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001455364</cik>
        <entityName>SYNDEVRX INC</entityName>
        <issuerAddress>
            <street1>ONE BROADWAY</street1>
            <street2>14TH FLOOR</street2>
            <city>CAMBRIDGE</city>
            <stateOrCountry>MA</stateOrCountry>
            <zipCode>02142</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>617-401-3110</issuerPhoneNumber>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2007</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <middleName>Michael</middleName>
                <lastName>Shanahan</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>One Broadway</street1>
                <street2>14th floor</street2>
                <city>Cambridge</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02142</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bradley</firstName>
                <middleName></middleName>
                <lastName>Carver</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>OneBroadway</street1>
                <street2>14th floor</street2>
                <city>Cambridge</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02142</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Eric</firstName>
                <middleName></middleName>
                <lastName>Tooker</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>9977 N. 90th St., Suite 110</street1>
                <street2></street2>
                <city>Scottsdale</city>
                <stateOrCountry>AZ</stateOrCountry>
                <zipCode>85258</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName></middleName>
                <lastName>Love</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>9977 N. 90th St., Suite 110</street1>
                <street2></street2>
                <city>Scottsdale</city>
                <stateOrCountry>AZ</stateOrCountry>
                <zipCode>85258</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-07-14</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>1570000</totalOfferingAmount>
            <totalAmountSold>569659</totalAmountSold>
            <totalRemaining>1000341</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>11</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>12000</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>SYNDEVRX INC</issuerName>
                <signatureName>James M. Shanahan</signatureName>
                <nameOfSigner>James M. Shanahan</nameOfSigner>
                <signatureTitle>Director</signatureTitle>
                <signatureDate>2009-07-23</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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