(S)-Methyl 3-([1,1'-biphenyl]-4-yl)-2-aminopropanoate → (s)-3-Biphenyl-4-yl-2-({(s)-3-[4-(3,4-dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexahydro-[1,4]dioxino-[2,3-g]isoquinoline-8-carbonyl}-amino)-propionic acid methyl ester hydrochloride salt

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(S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3,8,9-tetrahydro-6H-[1,4]dioxino[2,3-g]isoquinoline-7,8-dicarboxylic acid 7-tert-butyl ester (59 mg) was coupled with (S)-2-amino-3-biphenyl-4-yl-propionic acid methyl ester (31 mg) according to General Procedure A. The resulting Boc-protected amine was treated as described in General Procedure C to give (S)-3-Biphenyl-4-yl-2-({(S)-3-[4-(3,4-dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexahydro-[1,4]dioxino-[2,3-g]isoquinoline-8-carbonyl}-amino)-propionic acid methyl ester hydrochloride salt (43 mg).

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