Consider a derivative (1) of salvianolic acid B, an antioxidant and free radical scavenging compound from...

 

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Consider a derivative (1) of salvianolic acid B, an antioxidant and free radical scavenging compound from the root of Salvia miltiorrhiza Bunge, shown below. Answer parts i.- vii. on that molecule or on the line found next to the question. H3CO HO OCH3 OH A -OH NH OH 1 B OH -OH iii. iv. V. vi. vii. Deduce the molecular formula of compound 1. Place lone pairs on the heteroatoms indicated by an arrow and a circle (A-B). Circle and label an sp³ hybridized atom with the letter C, and an atom with a trigonal planar geometry with the letter D. State the total number of л bonds found in 1. Place a box around a tertiary (3°) carbon atom. Circle and label six (6) oxygen-containing functional groups found in 1. Be sure to circle the entire functional group. Identify one polar covalent bond found in 1 by placing partial charges to indicate the bond polarization. [14 marks] Consider a derivative (1) of salvianolic acid B, an antioxidant and free radical scavenging compound from the root of Salvia miltiorrhiza Bunge, shown below. Answer parts i.- vii. on that molecule or on the line found next to the question. H3CO HO OCH3 OH A -OH NH OH 1 B OH -OH iii. iv. V. vi. vii. Deduce the molecular formula of compound 1. Place lone pairs on the heteroatoms indicated by an arrow and a circle (A-B). Circle and label an sp³ hybridized atom with the letter C, and an atom with a trigonal planar geometry with the letter D. State the total number of л bonds found in 1. Place a box around a tertiary (3°) carbon atom. Circle and label six (6) oxygen-containing functional groups found in 1. Be sure to circle the entire functional group. Identify one polar covalent bond found in 1 by placing partial charges to indicate the bond polarization. [14 marks]