Need to fetch the data "Bm1","HyperlinkForBm" from below sample RTF field text:
{\field{*\fldinst
{\rtlch\fcs1 \af0 \ltrch\fcs0 \insrsid9584735 HYPERLINK \\l "Bm1" }{\rtlch\fcs1 \af0 \ltrch\fcs0 \insrsid9584735
{\*\datafield 08d0c9ea79f9bace118c8200aa004ba90b02000000080000000400000042006d0031000000000000}}}{\fldrslt
{\rtlch\fcs1 \af0 \ltrch\fcs0 \cs15\ul\cf18\insrsid11810822\charrsid9584735 HyperlinkForBm}}}