L-Proline, 1-(N2-(N-(N-(N-(N-(N-(N-(N-acetyl-3-(1-naphthalenyl)-D-alanyl)-4-chloro-D-phenylalanyl)-D-tryptophyl)-L-seryl)-L-tyrosyl)-O-(6-deoxy-alpha-L-mannopyranosyl)-D-seryl)-L-leucyl)-L-arginyl)-, 2-(aminocarbonyl)hydrazide