51061-99-5 Spiro(cyclopentane-1,4'(1'H)-isoquinolin)-3-ol, 2',3'-dihydro-6'-methoxy-2'-methyl-, cis- Spiro-(3-hydroxycyclopentane-1,4'-2',3'-dihydro-6'-methoxy-2'-methyl-1'H-isoquinoline)