Erreur SED dans un script Shell

#connexion et exportation la liste 
sql.sh -t 10 -H $DHOST -d $DNAME -u $DUSER -p $DPWD -c "${CMDSQL}" -o "${OUTFILESQL}" -l $LOGSQL

#Traitement du fichier ${OUTFILESQL}
sed "/^/{s/.*/INSERT IGNORE INTO matable1 (activ,mail) VALUES (1,'&');\n\INSERT INTO matable2 (id,tid) VALUES(LAST_INSERT_ID(),507);/}" ${EXPORTFILE} > ${IMPORTFILE}

sed -e '1i\BEGIN;' ${IMPORTFILE} > ${INSERTFILE}

#Connexion SFTP sur serveur
sftp nomserveur <<EOF
put ${INSERTFILE}
quit
EOF

#Connexion SSH et insert en base 
ssh nomserveur <<EOF
mysql --user="$USER" --password="$PASS" $BASE} < ${INSERTFILE} 2>> ${LOGINSERTSQL} || echo "Echec de connexion a la BD du ${DATE}"  > ${LOG}
exit
EOF

+ sed '/^/{s/.*/INSERT IGNORE INTO matable1 (activ,mail) VALUES (1,'\''&'\'');\n\INSERT INTO matable2 (id,tid) VALUES(LAST_INSERT_ID(),507);/}' /monrepertoire/monfichier.sql
sed: -e expression #1, char 162: Unknown option to 's'
+ sed -e '1i\BEGIN;'  /monrepertoire/monfichier.sql
sed: -e expression #1, char 4: Extra characters after command