p. 726 - 736
(1972)p. 1773 - 1778
(2007/10/03)2-methoxycarbonylmethyl-3,3-dimethyl-5-methoxyindan-1-one
2-carboxymethyl-3,3-dimethyl-5-methoxyindan-1-one
1,1-dimethyl-2-carboxymethyl-6-methoxyindane
1,1-dimethyl-2-methoxycarbonylmethyl-6-methoxyindane